APA (7th ed.) Citation

Ubbelohde, C. (1965). A Colorado history. Pruett Press.

Chicago Style (17th ed.) Citation

Ubbelohde, Carl. A Colorado History. Boulder, Colo.: Pruett Press, 1965.

MLA (9th ed.) Citation

Ubbelohde, Carl. A Colorado History. Pruett Press, 1965.

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