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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1916 Aug;2(8):490–495. doi: 10.1073/pnas.2.8.490

The Geologic Rôle of Phosphorus

Eliot Blackwelder 1
PMCID: PMC1091075  PMID: 16586638

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