Hoffman, M. A. (1991). Egypt before the pharaohs: The prehistoric foundations of Egyptian civilization (Rev. and updated.). Austin: University of Texas Press.
استشهاد بنمط شيكاغوHoffman, Michael A. Egypt Before the Pharaohs: The Prehistoric Foundations of Egyptian Civilization. Rev. and updated. Austin: University of Texas Press, 1991.
MLA استشهادHoffman, Michael A. Egypt Before the Pharaohs: The Prehistoric Foundations of Egyptian Civilization. Rev. and updated. Austin: University of Texas Press, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.