Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Vivian, R. G. (1959). The Hubbard site and other tri-wall structures in New Mexico and Colorado. National Park Service, U. S. Dept. of the Interior.

Chicago Citation Edition Citation

Vivian, R. Gordon. The Hubbard Site and Other Tri-wall Structures in New Mexico and Colorado. Washington: National Park Service, U. S. Dept. of the Interior, 1959.

MLA Citation Edition Citation

Vivian, R. Gordon. The Hubbard Site and Other Tri-wall Structures in New Mexico and Colorado. National Park Service, U. S. Dept. of the Interior, 1959.