Cita APA (7th ed.)

Martin, P. S., Quimby, G. I., & Collier, D. (1947). Indians before Columbus: Twenty thousand years of North American history revealed by archeology. The University of Chicago Press.

Cita Chicago (17th ed.)

Martin, Paul Sidney, George Irving Quimby, i Donald Collier. Indians Before Columbus: Twenty Thousand Years of North American History Revealed by Archeology. Chicago, Ill: The University of Chicago Press, 1947.

Cita MLA (9th ed.)

Martin, Paul Sidney, et al. Indians Before Columbus: Twenty Thousand Years of North American History Revealed by Archeology. The University of Chicago Press, 1947.