APA (7th ed.) Citation

Geological Survey (U.S.). (1982). U.S. Geological Survey activities: Fiscal year 1981. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). U.S. Geological Survey Activities: Fiscal Year 1981. [Reston, Virginia]: United States Department of the Interior, Geological Survey, 1982.

MLA (9th ed.) Citation

Geological Survey (U.S.). U.S. Geological Survey Activities: Fiscal Year 1981. United States Department of the Interior, Geological Survey, 1982.