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2Texto bibliotecaFAO IT
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3Texto bibliotecaFAO IT
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4Texto bibliotecaFAO IT
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5Texto bibliotecaFAO IT
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6Texto bibliotecaFAO IT
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7Texto bibliotecaFAO IT
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8Texto bibliotecaFAO IT
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9Texto bibliotecaFAO IT
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10Texto bibliotecaFAO IT
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11by Ivanova, E.N., Soil Conservation Service, Washington, D.C. (USA) eng, Nogina, N.A.
Published 1977Texto bibliotecaFAO IT -
12by Fridland, V.M., Soil Conservation Service, Washington, D.C. (USA) eng, Erokhina, A.A.
Published 1976Texto bibliotecaFAO IT -
13by Evstifeev, Yu.G., Soil Conservation Service, Washington, D.C. (USA) eng, Indian National Scientific Documentation Centre, New Delhi eng
Published 1970Texto bibliotecaFAO IT -
14by Kotin, N.I., Soil Conservation Service, Washington, D.C. (USA) eng, National Science Foundation, Washington, D.C. (USA) eng
Published 1975Texto bibliotecaFAO IT