Bowers, J. E., & Wignall, B. (1993). Shrubs and trees of the Southwest deserts. Southwest Parks and Monuments Association.
Chicago-Zitierstil (17. Ausg.)Bowers, Janice E., und Brian Wignall. Shrubs and Trees of the Southwest Deserts. Tucson, Arizona: Southwest Parks and Monuments Association, 1993.
MLA-Zitierstil (9. Ausg.)Bowers, Janice E., und Brian Wignall. Shrubs and Trees of the Southwest Deserts. Southwest Parks and Monuments Association, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.