APA (7th ed.) Citation

Pomeroy, J. S. (1977). Landslide susceptibility map of the Pittsburgh West quadrangle, Allegheny County, Pennsylvania. The Survey.

Chicago Style (17th ed.) Citation

Pomeroy, John S. Landslide Susceptibility Map of the Pittsburgh West Quadrangle, Allegheny County, Pennsylvania. Reston, Va.: The Survey, 1977.

MLA (9th ed.) Citation

Pomeroy, John S. Landslide Susceptibility Map of the Pittsburgh West Quadrangle, Allegheny County, Pennsylvania. The Survey, 1977.