Cover image for Biological populations as indicators of environmental change.
Biological populations as indicators of environmental change.
Title:
Biological populations as indicators of environmental change.
Author:
United States. Environmental Protection Agency. Office of Policy, Planning, and Evaluation.
Physical Description:
volumes : illustrations, maps ; 28 cm
General Note:
Shipping list no.: 94-0181-P (v. 1).

"December 1992"--Vol. 1.

"EPA/230/R-92/011"--Vol. 1.
Language:
English
ISBN:
9780160426155
Format :
Book