Proceedings, 20th U.S. Department of Agriculture Interagency Research Forum on gypsy moth and other invasive species, 2009 [electronic resource] : January 13-16, 2009, Loews Annapolis Hotel, Annapolis, Maryland / edited by Katherine McManus and Kurt W. Gottschalk ; sponsored by Forest Service Research ... [et al.].
Imprint
Newtown Square, PA : U.S. Dept. of Agriculture, Forest Service, Northern Research Station, [2009]