Pollution
Subtitle: what extension can do about it
By: by H.G. Geyer
Contributors: United States. Extension Service
Series: PA -- 956; Program aid (United States. Department of Agriculture) -- no. 956.
Publisher: Extension Service, U.S. Dept. of Agriculture
Published: 1970
Place of publication: Washington, D.C.]
Language: eng
Subjects: Agricultural extension work; Conservation of natural resources; Agricultural extension workers
Notes: Caption title.

"November 1970"--Page [5].