| Type |  Book |
| ชื่อเรื่อง | The Western Bark Beetle Research Group : a unique collaboration with forest health protection : proceedings of a symposium at the 2007 Society of American Foresters Conference, October 23-28, 2007, Portland, Oregon / J.L. Hayes and J.E. Lundquist, compilers |
| พิมพลักษณ์ | Portland : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2009 |
| รูปเล่ม | 134 p. : ill. (some col.), maps (some col.) ; 28 cm |
| หัวเรื่อง | Bark beetles --Control --West (U.S.) --Congresses [] |
| | Bark beetles --West (U.S.) --Congresses [] |
| | Conifers --Diseases and pests --Control --West (U.S.) --Congresses [] |
| | Conifers --Diseases and pests --West (U.S.) --Congresses [] |
| | Forest health --West (U.S.) --Congresses [] |