Macro what?
Subtitle: National Aquatic Ecosystem Monitoring Center Macroinvertebrate Program.
Contributors: United States. Forest Service.; United States. Bureau of Land Management.
Edition: [Rev./Reprint 1994].
Publisher: U.S. Dept. of Agriculture, Forest Service; U.S. Dept. of Interior, Bureau of Land Management
Published: 1994
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Aquatic insects -- Ecology -- United States.; Freshwater invertebrates -- Ecology -- United States.; Water quality -- United States -- Measurement.; Pesticides -- Environmental aspects -- United States.
Other titles: National Aquatic Ecosystem Monitoring Center Macroinvertebrate Program.
Notes: Shipping list no.: 94-0243-P.