APA (7th ed.) Citation

Cassells, E. S. (1986). Prehistoric hunters of the Black Hills. Johnson Books.

Chicago Style (17th ed.) Citation

Cassells, E. Steve. Prehistoric Hunters of the Black Hills. Boulder, Colo.: Johnson Books, 1986.

MLA (9th ed.) Citation

Cassells, E. Steve. Prehistoric Hunters of the Black Hills. Johnson Books, 1986.