APA (7th ed.) Citation

Geological Survey (U.S.), Ach, J. A., & Bateson, J. T. (1991). Geologic map of the Sand Hollow quadrangle, Crook County, Oregon. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Jay A. Ach, and James T. Bateson. Geologic Map of the Sand Hollow Quadrangle, Crook County, Oregon. Reston, Va.: The Survey, 1991.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of the Sand Hollow Quadrangle, Crook County, Oregon. The Survey, 1991.