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Spruce beetle and the forests of the southwest Yukon
Rod Garbutt, Brad Hawkes, and Eric Allen
Bok Engelsk 2006
Foliage diseases in western larch in British Columbia
Garbutt, Rod
Bok Engelsk 1996
Poplar and willow borer
Garbutt, Rod
Bok Engelsk 1994
Laminated root rot of Douglas-fir
R. Sturrock and R. Garbutt
Bok Engelsk 1994