Sources of fertilizer minerals in South America : a preliminary study : geology and technology of fertilizer-mineral deposits of phosphates, potash, and sulfur and suggestions for further exploration in South America
Fertilizer-mineral sources in South America
Geology and technology of fertilizer-mineral deposits of phosphates, potash, and sulfur and suggestions for further exploration in South America
Geological Survey bulletin ;
Harrington, James F. (James Foster), 1916-2002, author.
Ward, David E., author.
McKelvey, V. E. (Vincent Ellis), 1916- author.
Geological Survey (U.S.), issuing body.
by J.F. Harrington, D.E. Ward, and V.E. McKelvey.
Sources of fertilizer minerals in South America : a preliminary study : geology and technology of fertilizer-mineral deposits of phosphates, potash, and sulfur and suggestions for further exploration in South America