Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Bell, J. C., M. Knighten, and W. M. Ciesla. 1966a. Appraisal survey of a southern pine beetle outbreak near Yorktown, Virginia. United States Department of Agriculture, Forest Service, Southern Region, State and Private Forestry, Report 66-1-9.