Παραπομπή APA

Clark , G. (1970). Aspects of prehistory. University of California press.

Παραπομπή Chicago Style

Clark , Grahame. Aspects of Prehistory. London: University of California press, 1970.

Παραπομπή MLA

Clark , Grahame. Aspects of Prehistory. University of California press, 1970.