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1by Clapp, Verner Warren, 1932-Subjects: “...Sitka spruce....”
Published 1979
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4Subjects: “...Spruce Alaska....”
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5Published 1984Subjects: “...Sitka spruce....”
Government Document Book -
6Published 1996Subjects: “...White spruce....”
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8by Seegrist, Donald W.Subjects: “...Spruce budworm Maine....”
Published 1982
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9by Grimble, David G.Subjects: “...Spruce budworm United States....”
Published 1982
Government Document Book -
10by Holsten, Edward H.Subjects: “...Spruce budworm Alaska....”
Published 2005
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11
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12Published 1990Subjects: “...Spruce Diseases and pests Minnesota....”
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13by Bulaon, BeverlySubjects: “...Western spruce budworm Montana....”
Published 2006
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14
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15Published 1976Subjects: “...Spruce budworm....”
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16
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17Published 1978Subjects: “...White spruce....”
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18
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19by Van Haverbeke, David F., 1928-Subjects: “...Spruce Nebraska....”
Published 1984
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