APA (7th ed.) Citation

Davis, R. E. (1990). Organization, programs and activities of the Geologic Division, U.S. Geological Survey (Rev. version ..).

Chicago Style (17th ed.) Citation

Davis, Robert E. Organization, Programs and Activities of the Geologic Division, U.S. Geological Survey. Rev. version .. Denver, CO, 1990.

MLA (9th ed.) Citation

Davis, Robert E. Organization, Programs and Activities of the Geologic Division, U.S. Geological Survey. Rev. version .. 1990.