Symposium on the Management of Lodgepole Pine to Minimize Losses to the Mountain Pine Beetle. (1989). Management of lodgepole pine to minimize losses to the mountain pine beetle: Proceedings. United States Department of Agriculture.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Symposium on the Management of Lodgepole Pine to Minimize Losses to the Mountain Pine Beetle. Management of Lodgepole Pine to Minimize Losses to the Mountain Pine Beetle: Proceedings. United States: United States Department of Agriculture, 1989.
MLA -ийн эшлэл (9 дэх хэвлэлт)Symposium on the Management of Lodgepole Pine to Minimize Losses to the Mountain Pine Beetle. Management of Lodgepole Pine to Minimize Losses to the Mountain Pine Beetle: Proceedings. United States Department of Agriculture, 1989.
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