APA (7th ed.) Citation

Ruppel, E. T., & Lopez, D. A. (1981). Geologic map of the Gilmore quadrangle, Lemhi and Custer Counties, Idaho. The Survey.

Chicago Style (17th ed.) Citation

Ruppel, Edward Thompson, and David A. Lopez. Geologic Map of the Gilmore Quadrangle, Lemhi and Custer Counties, Idaho. [Reston, Va.]: The Survey, 1981.

MLA (9th ed.) Citation

Ruppel, Edward Thompson, and David A. Lopez. Geologic Map of the Gilmore Quadrangle, Lemhi and Custer Counties, Idaho. The Survey, 1981.