APA (7th ed.) Citation

Oppelt, N. T. (1981). Guide to prehistoric ruins of the Southwest. Pruett Pub. Co..

Chicago Style (17th ed.) Citation

Oppelt, Norman T. Guide to Prehistoric Ruins of the Southwest. Boulder, Colo.: Pruett Pub. Co., 1981.

MLA (9th ed.) Citation

Oppelt, Norman T. Guide to Prehistoric Ruins of the Southwest. Pruett Pub. Co., 1981.