F. W.  Davis and Brown, R. W., ?Vegetation Change in Blue Oak and Blue Oak/Foothill Pine Woodland?, University of California, Santa Barbara, 1995.

F. W.  Davis and Brown, R. W., ?Vegetation Change in Blue Oak and Blue Oak/Foothill Pine Woodland?. University of California, Santa Barbara, 1995.

R. W.  Brown and Davis, F. W., ?Historical mortality of Valley Oak (Quercus lobata, Nee) in the Santa Ynez Valley, Santa Barbara, County, 1938-1989?. USDA Forest Service, 1991.