APA (7th ed.) Citation

Oltman, R. E. (1951). Index of surface-water records to September 30, 1950. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Oltman, Roy E. Index of Surface-water Records to September 30, 1950. Washington, D.C.: United States Department of the Interior, Geological Survey, 1951.

MLA (9th ed.) Citation

Oltman, Roy E. Index of Surface-water Records to September 30, 1950. United States Department of the Interior, Geological Survey, 1951.

Warning: These citations may not always be 100% accurate.