A statistical analysis of U.S. demand for phosphate rock, potash, and nitrogen.
Series: Bureau of Mines information circular 8418; Information circular (United States. Bureau of Mines) ;; 8418.
Publisher: U.S. Bureau of Mines; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1969
Place of publication: [Washington]
Language: eng
Number of pages: 55
Subjects: Phosphate rock -- United States.; Potash industry and trade -- United States.; Nitrogen industries -- United States.
Notes: Bibliography: p. 45-47.