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作者 Massey, C. L.

標題 Biology and control of the Engelmann spruce beetle in Colorado / by C.L. Massey and N.D. Wygant.

出版資料 Washington, D.C. : U.S. Dept. of Agriculture, 1954.

複本

說明 35 p. : ill. ; 24 cm.
系列 Circular / United States Department of Agriculture ; no. 944
Circular (United States. Department of Agriculture) no. 944.
Notes Cover title.
With: Bound With: Relation of bruising and other factors to blue mold decay of Delicious apples.
Bibliography Includes bibliographical references (p. 35).
主題 Engelmann spruce beetle -- Colorado.
Spruce -- Diseases and pests -- Colorado.
添加作者 Wygant, N. D.
政府出版物號碼 A 1.4/2:944
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