APA (7th ed.) Citation

Griggs, A. B. (1973). Geologic map of the Spokane quadrangle, Washington, Idaho, and Montana. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Griggs, Allan B. Geologic Map of the Spokane Quadrangle, Washington, Idaho, and Montana. Washington, D.C.: U.S. Geological Survey, 1973.

MLA (9th ed.) Citation

Griggs, Allan B. Geologic Map of the Spokane Quadrangle, Washington, Idaho, and Montana. U.S. Geological Survey, 1973.