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7Published 1960Subjects: “...Soils....”
Book -
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11Published 1934Subjects: “...Soils....”
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12
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13by Beeson, Kenneth C. (Kenneth Crees), 1903-1998Subjects: “...Soils and nutrition....”
Published 1976
Book -
14Published 1989Subjects: “...Soils Pennsylvania....”
Government Document Book -
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17Published 1997Subjects: “...Soils Quality....”
Book -
18by Mohr, E. C. Jul. (Edward Carl Julius), 1873-1970Subjects: “...Soils Tropics....”
Published 1944
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20