Standiford, Richard B.; McCreary, Douglas; Purcell, Kathryn L. (2002). Fifth symposium on oak woodlands: oaks in California's changing landscape. 2001 October 22–25. Albany, CA: USDA. doi:10.2737/psw-gtr-184. Archived on 2022-10-22.
Standiford, Richard B.; McCreary, Douglas; Purcell, Kathryn L. (2002). Fifth symposium on oak woodlands: oaks in California's changing landscape. 2001 October 22–25. Albany, CA: USDA. doi:10.2737/psw-gtr-184. Archived on 2022-10-22.