APA (7th ed.) Citation

Pomeroy, J. S. (1981). Landslides in the Greater Pittsburgh region, Pennsylvania. U.S. G.P.O..

Chicago Style (17th ed.) Citation

Pomeroy, John S. Landslides in the Greater Pittsburgh Region, Pennsylvania. Washington: U.S. G.P.O., 1981.

MLA (9th ed.) Citation

Pomeroy, John S. Landslides in the Greater Pittsburgh Region, Pennsylvania. U.S. G.P.O., 1981.