Julien, M.H. 1992.. Biological Control of Weeds, A World Catalogue of Agents and their TargetWeeds. Third Edition. C.A.B. International.186 pp.
Lukens, J. O., and J. W. Thieret. 1997. Assessment and Management of Plan Invasions. Springer-Verlag, New York. 316 pp.
U. S. Congress, Office of Technological Assessment, Harmful Non-Indigenous species in the United States. OTA-F-565 (Washington, DC; U.S. Government Printing Office, September 1993).
Wade, D. (editor) 1998. Reviewer’s manual for the technical advisory group for biological control agents of weeds, guidelines for evaluating the safety of candidate biological control agents. USDA, Marketing and Regulatory Services, APHIS, PPQ.
Westbrook, R. 1998. Invasive plants, changing the landscape of America: Fact book. Federal Interagency Committee for the Management of Noxious and Exotic Weeds (FICMNEW), Washington, D. C. 109 pp.
Whitson, T. D., L. C. Burrill, S. A. Dewey, D. W. Cudney, B. E. Nelson, R. D Lee and R. Parker. 1991. Weeds of the West. The Western Society of Weed Science. 630 pp.