APA (7th ed.) Citation

United States. Federal Committee on Ecological Reserves, United States. Forest Service, National Science Foundation (U.S.), & Nature Conservancy (U.S.). (1977). A directory of research natural areas on Federal lands of the United States of America. Agriculture Dept., Forest Service.

Chicago Style (17th ed.) Citation

United States. Federal Committee on Ecological Reserves, United States. Forest Service, National Science Foundation (U.S.), and Nature Conservancy (U.S.). A Directory of Research Natural Areas on Federal Lands of the United States of America. Washington: Agriculture Dept., Forest Service, 1977.

MLA (9th ed.) Citation

United States. Federal Committee on Ecological Reserves, et al. A Directory of Research Natural Areas on Federal Lands of the United States of America. Agriculture Dept., Forest Service, 1977.