Picea breweriana Wats. Silvics of North America. U.S. Department of Agriculture, Soil Conservation Service. National list of scientific plant names. List of plant names.
Vegetation changes in Sequoia National Park, California.
Journal of Biogeography. Volland, Leonard A. 1985. Plant associations of the central Oregon Pumice Zone. Wells, Philip V. 1988. Annotated list of changes in status.