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

APA Citation Edition Citation

Spence, M. W. (1971). Some lithic assemblages of western Zacatecas and Durango, Mexico. University Museum.

Chicago Citation Edition Citation

Spence, Michael W. Some Lithic Assemblages of Western Zacatecas and Durango, Mexico. Carbondale-IL: University Museum, 1971.

MLA Citation Edition Citation

Spence, Michael W. Some Lithic Assemblages of Western Zacatecas and Durango, Mexico. University Museum, 1971.