Status and trends of the nation's biological resources / project director, Michael J. Mac ; science editor, Paul A. Opler ; technical editor, Catherine E. Puckett Haecker ; graphics editor, Peter D. Doran.
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Washington, DC : For sale by the Supt. of Docs., U.S. G.P.O., 1998.