Environmental monitoring and assessment program : agroecosystem monitoring and research strategy /

Bibliographic Details
Corporate Authors:	United States. Environmental Protection Agency. Office of Research and Development, United States. Agricultural Research Service
Other Authors:	Heck, Walter Webb, 1926-
Format:	Government Document Microform Book
Language:	English
Published:	Washington, D.C. : U.S. Environmental Protection Agency, Office of Research and Development : 1991.
Subjects:	United States. > Environmental Protection Agency. > Environmental Monitoring and Assessment Program. Environmental monitoring > United States. Agricultural ecology > United States.