Cita APA (7th ed.)

Clark, J. G. D. (1967). The stone age hunters. McGraw-Hill.

Cita Chicago (17th ed.)

Clark, John Grahame Douglas. The Stone Age Hunters. New York: McGraw-Hill, 1967.

Cita MLA (9th ed.)

Clark, John Grahame Douglas. The Stone Age Hunters. McGraw-Hill, 1967.