APA (7th ed.) Citation

Hafen, L. R., Tierney, L. D., & Parsons, W. B. (1941). Pike's Peak gold rush guidebooks of 1859. Arthur H. Clark.

Chicago Style (17th ed.) Citation

Hafen, LeRoy R., Luke D. Tierney, and William Bostwick Parsons. Pike's Peak Gold Rush Guidebooks of 1859. Glendale, Calif.: Arthur H. Clark, 1941.

MLA (9th ed.) Citation

Hafen, LeRoy R., et al. Pike's Peak Gold Rush Guidebooks of 1859. Arthur H. Clark, 1941.