1. Warren N. Performance characteristics of the colt polarised filter-conditionair. 1994 Apr 25. British American Tobacco. Bates No. 403664404/4427 (available from Minnesota depository).
2. Warren N. Performance of Colt Filters in the Ellis Conference Rooms. 1994 May 11. British American Tobacco. Bates No. 600108049/8053. Available from Minnesota Depository.
3. Vasudevan B. Air filtration systems. 1994 Nov 28. British American Tobacco. Bates No. 600107924/7926. Available from Minnesota Depository.
4. Warren N. Indoor Air Quality Project. No date. British American Tobacco. Bates No. 700098392. Available from Minnesota Depository.
5. Meeting with Colt Int. Est Date June 1995. British American Tobacco. Bates No. 700097753. Available from Minnesota Depository.
6. AIR QUALITY PROJECT. No date. British American Tobacco. Bates No. 700097730/7731. Available from Minnesota Depository.
7. Warren N. Re Colt Air Filtration Units. 1995 May 4. British American Tobacco. Bates No. 600108093/8094. Available from Minnesota Depository.
8. Vasudevan B. Re: Barclay - Diners Lounge in Brussels Airport. 1994 Mar 8. British American Tobacco. Bates No.403664371/4374. Available from Minnesota Depository.
9. Project Review Meeting 6 April 1995 15:00. 1995 Apr 6. British American Tobacco. Bates No. 700097734/7737. http://bat.library.ucsf.edu/data/u/e/d/ued60a99/ued60a99.pdf (accessed 11 Jan 2006).
10. Warren N. The Colt - BAT Triple Polarised Filter. 1994 Aug 23. British American Tobacco. Bates No. 403698408/8410. Available from Minnesota Depository.
11. Warren N. Re Colt Air Filtration Systems. 1995 Feb 2. British American Tobacco. Bates No. 600108255. http://bat.library.ucsf.edu/data/d/n/v/dnv60a99/dnv60a99.pdf.
12. Bingham P. SUBJECT: Marketing Department Meeting - Minutes. 1994 Nov 30. British American Tobacco. Available from Minnesota Depository.
13. Sims D. [Memo regarding resocialisation of smoking]. 1997 June 16. British American Tobacco. Bates No: 900030342-900030343 at 0342. http://bat.library.ucsf.edu/data/o/m/i/omi34a99/omi34a99.pdf
14. ETS TASK FORCE MEETING Neuchatel , Switzerland. British American Tobacco Bates No. 600108060. http://bat.library.ucsf.edu/data/o/m/v/omv60a99/omv60a99.pdf.
15. Warren N. RE R&D Solutions to Indoor Air Quality. 1996 Feb 22. British American Tobacco. Bates No. 700122410/2412. Available from Minnesota Depository.
16. Bryan H. Report on Project Care update meeting: 1 February 1996. 1996 Feb 1. British American Tobacco. Bates No. 700473166. Available from Minnesota Depository.
17. Bryan H. Project CARE: Team Meeting: 20 February 1996: Meeting report. 1996 Feb 20. British American Tobacco. Bates No. 700473164/3165. Available from Minnesota Depository.
18. Turner A. PROJECT CARE EVALUATION OF FILTERS AND POTENTIAL SUPPLIERS. 1996 May 30. British American Tobacco. Bates No. 700473239/3255. Available from Minnesota Depository.
19. Quek D. Subject: Colt Filters in Singapore Airport smoking lounges. 1996 Aug 29. British American Tobacco. Bates No.700596762. Available from Minnesota Depository.
20. Warren N. Subject: Smoking Lounges. 1966 Nov 1. British American Tobacco. Bates No. 800027330/7331. http://bat.library.ucsf.edu/data/y/a/b/yab70a99/yab70a99.pdf.
21. Warren N. Colt condition air filters and air quality study in santiago bridge club. 1996 Apr 24. British American Tobacco. Bates No. 800027387. http://bat.library.ucsf.edu/data/j/b/b/jbb70a99/jbb70a99.pdf (accessed 11 Jan 2006).
22. Corporate Responsibility Consulting. Case studies. [cited 2005 May 25]. Available at www.crconsulting.co.uk/casestudies.html?cs1.
23. Atmosphere Improves Results (AIR). 2002 [cited 2005 Jan 21]. Available from: www.airinitiative.com.
24. Graham, L. [Fax attaching Extracts from Memoranda of Tobacco Companies on Principal Issues]. 2000 Jan 6. British American Tobacco. Bates No. 322054915/4944. http://bat.library.ucsf.edu/data/h/p/v/hpv80a99/hpv80a99.pdf (accessed 11 Jan 2006).
25. Managing the ETS issue: United Kingdom Case Study: The AIR initiative. May 5, 2000. British American Tobacco. Bates No. 325118405-8410 at 8406. Available from the Minnesota Depository.
26. Tobacco Manufacturers Association [assumed author]. Proposal: Charter Sign-Up Programme. 26 Feb 2001. British American Tobacco. Bates No. 325048027/8030. Available at the Minnesota Depository.
27. No author. British American Tobacco Smoking Tables External Communications:Brief. Project Manager: Jody Humble. 2000 Oct 3. British American Tobacco. Bates No. 325052930/2938 at 2930. Available from the Minnesota Depository.
28. Sax, NI. Dangerous Properties of Industrial Materials. Reinhold, N.Y., Chapman and Hall, Ltd. London, 1961.
29. Warren, N. Birmingham Airport. 2000 June 12. Bates No. 325192311. British American Tobacco. Available from the Minnesota Depository.
30. No author. British American Tobacco Smoking Tables External Communications:Brief. Project Manager: Jody Humble. 2000 Oct 3. British American Tobacco. Bates No. 325052930/2938 at 2937. Available from the Minnesota Depository.