Our endangered water supply
Subtitle: the Cooperative Extension System's challenge
Contributors: Cooperative Extension System (U.S.)
Publisher: U.S Dept. of Agriculture, Extension Service; Land-Grant University Cooperative Extension Services
Published: 1989
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Cooperative Extension System (U.S.); Study and teaching; Quality; Groundwater; Water quality
Notes: Cover title.

"May 1989."--P. 5.