The National Biological Diversity Conservation and Environmental Research Act [microform] : hearings before the Subcommittee on Natural Resources, Agriculture Research, and Environment of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundredth Congress, second session, June 9, 30, 1988.

"No. 143."

Minnesota wildlife disease investigation : a compilation of monthly reports to the Division of Game and Fish, Minnesota Department of Conservation /

"Conducted by University of Minnesota, Bureau of Biological Survey, Minnesota Department of Conservation."

Biological survey ...

Number 1-4 issued without series title or number

A biological and water quality survey of Sugar Creek and tributaries, Crawford County, Illinois, August-September, 1992 /

"IEPA/WPC/93-063."--Cover.

Biological and water quality survey of three tributaries to the Sangamon River : South Fork basin, Mosquito Creek and Long Point Slough, September thru November, 1989 : Staff Report /

"May 1991."

Draft biological diversity assessment.

"November 1990."

Biological diversity /

"May 1992."