APA (7th ed.) Citation

Bowers, J. E., & Wignall, B. (1993). Shrubs and trees of the Southwest Deserts. Southwest Parks and Monuments Association.

Chicago Style (17th ed.) Citation

Bowers, Janice Emily, and Brian Wignall. Shrubs and Trees of the Southwest Deserts. Tucson, Ariz.: Southwest Parks and Monuments Association, 1993.

MLA (9th ed.) Citation

Bowers, Janice Emily, and Brian Wignall. Shrubs and Trees of the Southwest Deserts. Southwest Parks and Monuments Association, 1993.