Compiled by Diane M. McKnight and C. Susan Weiler.
"Organized by American Society of Limnology and Oceanography [and] North American Benthological Society"--Cover.
"Sponsored by U.S. Environmental Protection Agency [and] U.S. Geological Survey"--Cover.
Distributed to depository libraries in microfiche.
Shipping list no.: 98-0340-M.
Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., 1998 1 microfiche : negative.