APA (7th ed.) Citation

Brownfield, M. E., & Staub, P. E. (1982). Geologic map of the Sheridan quadrangle, Polk and Yamhill Counties, Oregon. State of Oregon, Dept. of Geology and Mineral Industries.

Chicago Style (17th ed.) Citation

Brownfield, M. E., and Paul E. Staub. Geologic Map of the Sheridan Quadrangle, Polk and Yamhill Counties, Oregon. Portland, Or.: State of Oregon, Dept. of Geology and Mineral Industries, 1982.

MLA (9th ed.) Citation

Brownfield, M. E., and Paul E. Staub. Geologic Map of the Sheridan Quadrangle, Polk and Yamhill Counties, Oregon. State of Oregon, Dept. of Geology and Mineral Industries, 1982.