APA (7th ed.) Citation

Geological Survey (U.S.). (1957). Pikes Peak and vicinity, Colo., 1956. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.). Pikes Peak and Vicinity, Colo., 1956. Washington: The Survey, 1957.

MLA (9th ed.) Citation

Geological Survey (U.S.). Pikes Peak and Vicinity, Colo., 1956. The Survey, 1957.

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