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The Composition and distribution of phosphate rock with special reference to the United States


Author:
Jacob, K. D.
Source:
Technical bulletin (United States. Dept. of Agriculture) ; no. 364 1933
Year:
1933
Subject:
Phosphate rock -- United States
Format:
90 p. ; 23 cm.
Publisher:
U.S. Dept. of Agriculture
Collection:
Organic Roots Collection