Macro what? : National Aquatic Ecosystem Monitoring Center Macroinvertebrate Program.

Bibliographic Details
Corporate Authors:	United States. Forest Service, United States. Bureau of Land Management
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.?] : U.S. Dept. of Agriculture, Forest Service : U.S. Dept. of Interior, Bureau of Land Management, 1994.
Edition:	[Rev./Reprint 1994].
Subjects:	Aquatic insects > Ecology > United States. Freshwater invertebrates > Ecology > United States. Pesticides > Environmental aspects > United States.