APA (7th ed.) Citation

Colby, B. R., & Oltman, R. E. (1948). Index of surface-water records. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Colby, Bruce R., and Roy E. Oltman. Index of Surface-water Records. Washington, D.C.: United States Department of the Interior, Geological Survey, 1948.

MLA (9th ed.) Citation

Colby, Bruce R., and Roy E. Oltman. Index of Surface-water Records. United States Department of the Interior, Geological Survey, 1948.

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