APA (7. basım) Alıntı
Spence, M. W. (1971). Some lithic assemblages of western Zacatecas and Durango, México. University Museum, Southern Illinois University.
Chicago Style (17. basım) Atıf
Spence, Michael W. Some Lithic Assemblages of Western Zacatecas and Durango, México. Carbondale, Illinois: University Museum, Southern Illinois University, 1971.
MLA (9th ed.) Atıf
Spence, Michael W. Some Lithic Assemblages of Western Zacatecas and Durango, México. University Museum, Southern Illinois University, 1971.
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