Cita APA (7th ed.)

Clark, G. (1961). World prehistory: In new perspective (3rd ed.). C.U. Pr..

Cita Chicago (17th ed.)

Clark, Grahame. World Prehistory: In New Perspective. 3rd ed. Cambridge: C.U. Pr., 1961.

Cita MLA (9th ed.)

Clark, Grahame. World Prehistory: In New Perspective. 3rd ed. C.U. Pr., 1961.