Wildland shrubs : their biology and utilization.
Technical editors: Cyrus M. McKell, James P. Blaisdell [and] Joe R. Goodin.
Ogden, Utah : Intermountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, 1972.
Serie: USDA Forest Service general technical report INT-1
Modo de acceso: World Wide Web.
Título tomado de www.biodiversitylibrary.org (visto el 28 de marzo de 2016).