Facts for industry.
prepared by Bureau of the Census, Industry Division, Chemicals Branch.
Facts for industry. M19D, Superphosphate and other phosphatic fertilizers.
Washington, D.C. : U.S. Dept. of Commerce, Bureau of the Census, -1956.
Phosphatic fertilizers /
Phosphatic fertilizers / United States /
Phosphatic fertilizers / United States / Statistics /
Description based on: 1955; title from caption.
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