Cita APA (7th ed.)
Coe, M. D., & Woodbury, R. B. (1968). America's first civilization. American Heritage.
Cita Chicago (17th ed.)
Coe, Michael D.., i Richard B. Woodbury. America's First Civilization. New York: American Heritage, 1968.
Cita MLA (9th ed.)
Coe, Michael D.., i Richard B. Woodbury. America's First Civilization. American Heritage, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.