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1

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Soils and fertilizers /

by Bear, Firman E.
Published 1953

Kitap

2

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Chemistry of the soil /

by Bear, Firman E.
Published 1955

Kitap

3

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Chemistry of the soil /

by Bear, Firman E.
Published 1967

Kitap

4

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Hunger signs in crops : a symposium /

by Bear, Firman E.
Published 1951

Kitap

5

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Soils their physics and chemistry /

by Puri, A. N.
Published 1949

Kitap

6

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Soils in relation to crop growth /

by Bear, Firman E.
Published 1965

Kitap