APA (7th ed.) Citation

Cassells, E. S. (1997). The archaeology of Colorado (Rev. ed.). Johnson Books.

Chicago Style (17th ed.) Citation

Cassells, E. Steve. The Archaeology of Colorado. Rev. ed. Boulder, Colo.: Johnson Books, 1997.

MLA (9th ed.) Citation

Cassells, E. Steve. The Archaeology of Colorado. Rev. ed. Johnson Books, 1997.