Cita APA (7th ed.)

Clark, J. G. D. (1970). Aspects of prehistory. University of California Press.

Cita Chicago (17th ed.)

Clark, John Grahame Douglas. Aspects of Prehistory. Berkeley: University of California Press, 1970.

Cita MLA (9th ed.)

Clark, John Grahame Douglas. Aspects of Prehistory. University of California Press, 1970.

Atenció: Aquestes cites poden no estar 100% correctes.