Fertilizers and the environment
By: A.R. Halvorson.
Series: Environmental education series (Pullman, Wash.); Extension mimeo -- 3648.; Extension mimeo (Washington State University. Cooperative Extension Service) -- 3648.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1972
Place of publication: Pullman
Language: eng
Notes: Caption title.

"September 1972."

"E.M. 3648."