APA (7th ed.) Citation

Thayer, T. P. (1956). Preliminary geologic map of the John Day quadrangle, Oregon. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Thayer, Thomas P. Preliminary Geologic Map of the John Day Quadrangle, Oregon. Washington, D.C.: U.S. Geological Survey, 1956.

MLA (9th ed.) Citation

Thayer, Thomas P. Preliminary Geologic Map of the John Day Quadrangle, Oregon. U.S. Geological Survey, 1956.

Warning: These citations may not always be 100% accurate.