First multi-year cumulation covers six years: 1965-70.

The Lyons Press is proud to present the forty-fifth annual edition of the National Wildlife Federation's "Conservation Directory" of U.S. and international organizations and agencies working to protect the environment -- the most vital resource of its kind. Included are: members of the United States Congress; government agencies; citizens' groups; educational institutions; databases, services, periodicals, and other directories; federally protected conservation areas; indexes; and more. This annual directory is essential for colleges and universities, libraries, environmental activists, students, outdoor writers, science editors, natural-resource agencies, those seeking employment in the field of conservation, researchers, and all individuals interested in wildlife and ecology.