Nelson, L. B. (1968). Changing patterns in fertilizer use: Proceedings of a symposium sponsored by the Soil Science Society of America and held at the Palmer House in Chicago, Illinois, February 14 and 15, 1968. Madison, Wisconsin: Soil Science Society of America, Inc..
Chicago Style CitationNelson, L. B. Changing Patterns in Fertilizer Use: Proceedings of a Symposium Sponsored By the Soil Science Society of America and Held At the Palmer House in Chicago, Illinois, February 14 and 15, 1968. Madison, Wisconsin: Soil Science Society of America, Inc., 1968.
MLA CitationNelson, L. B. Changing Patterns in Fertilizer Use: Proceedings of a Symposium Sponsored By the Soil Science Society of America and Held At the Palmer House in Chicago, Illinois, February 14 and 15, 1968. Madison, Wisconsin: Soil Science Society of America, Inc., 1968.