User's guide to IBI-AIBI, version 2.01 :
(a BASIC program for computing the Index of Biotic Integrity with the IBM-PC) /
by Christopher A. Bickers ... [et al.]

APA Citation

Bickers, C. A., Illinois. Environmental Protection Agency., Illinois. Division of Water Pollution Control. (1988). User's guide to IBI-AIBI, version 2.01: (a BASIC program for computing the Index of Biotic Integrity with the IBM-PC). Springfield, Ill.: Illinois Environmental Protection Agency, Division of Water Pollution Control.

MLA Citation

Bickers, Christopher A., 1961-, Illinois. Environmental Protection Agency, and Illinois. Division of Water Pollution Control. User's Guide to IBI-AIBI, Version 2.01: (a BASIC Program for Computing the Index of Biotic Integrity With the IBM-PC). Springfield, Ill.: Illinois Environmental Protection Agency, Division of Water Pollution Control, 1988.