The relation of mortality of balsam fir, abies balsamea (L.) mill., caused by the spruce budworm, ch

The relation of mortality of balsam fir abies balsamea (L.) mill. caused by the spruce budworm ch

出版社：Ottawa : Dept. of Agriculture, 1952.

出版年：1952

作者：Turner,K. B.

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The dynamics of epidemic spruce budworm populations

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