APA (7th ed.) Citation

Stuart, G. E., & Stuart, G. S. (1973). Discovering man's past in the Americas: Forew. by Matthew W. Stirling (2. ed.). National Geographic Soc.

Chicago Style (17th ed.) Citation

Stuart, George E., and Gene S. Stuart. Discovering Man's Past in the Americas: Forew. by Matthew W. Stirling. 2. ed. Washington: National Geographic Soc, 1973.

MLA (9th ed.) Citation

Stuart, George E., and Gene S. Stuart. Discovering Man's Past in the Americas: Forew. by Matthew W. Stirling. 2. ed. National Geographic Soc, 1973.