Havill, N. P., Vieira, L. C., & Salom, S. M. (2014). Biology and control of hemlock woolly adelgid. United States Department of Agriculture, Forest Health Technology Enterprise Team.
Chicago Style (17th ed.) CitationHavill, Nathan P., Lígia C. Vieira, and S. M. Salom. Biology and Control of Hemlock Woolly Adelgid. [Washington, D.C.]: United States Department of Agriculture, Forest Health Technology Enterprise Team, 2014.
MLA (9th ed.) CitationHavill, Nathan P., et al. Biology and Control of Hemlock Woolly Adelgid. United States Department of Agriculture, Forest Health Technology Enterprise Team, 2014.
Warning: These citations may not always be 100% accurate.