Woolley, S.B., comp. 1936. Root systems of important range plants of the Boise River watershed: A catalogue of species excavated by Liter E. Spence [collaborator]. Unpublished paper on file at: U.S. Department of Agriculture, Forest Service, Intermountain Fire Sciences Lab, Missoula, MT. p. 59.
Woolley, S.B., comp. 1936. Root systems of important range plants of the Boise River watershed: A catalogue of species excavated by Liter E. Spence [collaborator]. Unpublished paper on file at: U.S. Department of Agriculture, Forest Service, Intermountain Fire Sciences Lab, Missoula, MT. p. 59.