APA (7th ed.) Citation

Welles, S. P. (1947). Vertebrates from the upper Moenkopi formation of northern Arizona. University of California press.

Chicago Style (17th ed.) Citation

Welles, Samuel P. Vertebrates from the Upper Moenkopi Formation of Northern Arizona. Berkeley: University of California press, 1947.

MLA (9th ed.) Citation

Welles, Samuel P. Vertebrates from the Upper Moenkopi Formation of Northern Arizona. University of California press, 1947.