Encyclopedia of environmental information sources a subject guide to about 34,000 print and other sources of information on all aspects of the environment - Balachandran, Sarojini (Detroit Gale Research, 1993)
"Includes: abstracting and indexing services, almanacs and yearbooks, bibliographies, directories, encyclopedias and dictionaries, general works, governmetal organizations, handbooks and manuals, online data bases, periodicals and newletters, research centers and institutes, statistics sources, and trade associations and professional societies."
Keywords: Environmental protection -- Bibliography; Ecology -- Bibliography; Conservation of natural resources -- Bibliography