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Rotary soil working machines : construction, calculation and design
Published 1981“…Amerind Publishing ,…”
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4
Effects of vegetation on the freezing and thawing of soils
Published 1976“…Amerind Publishing ,…”
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5
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6
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10
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11
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Cotton boll rot:laying out a trial of a method of control
Published 1975“…Amerind Publishing ,…”
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16
The European pine sawfly : distribution, biology, economic importance, natural enemies and control
Published 1979“…Amerind Publishing ,…”
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17
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18
Studies on the systematic and phylogeny of holarctic sesiidae (Insecta, Lepidoptera)
Published 1977“…Amerind Publishing ,…”
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