APA (7th ed.) Citation

Villard, H., & Hafen, L. R. (1932). The past and present of the Pike's peak gold regions. Princeton university press.

Chicago Style (17th ed.) Citation

Villard, Henry, and LeRoy R. Hafen. The Past and Present of the Pike's Peak Gold Regions. Princeton: Princeton university press, 1932.

MLA (9th ed.) Citation

Villard, Henry, and LeRoy R. Hafen. The Past and Present of the Pike's Peak Gold Regions. Princeton university press, 1932.