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"soil science" » "social science" (Expand Search), "social sciences" (Expand Search)
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2Published 1974Subjects: “...International Congress of Soil Science (10th : 1974 : Moscow)...”
Conference Proceeding Book -
3Published 1975“...Papers of the participants of the 10th International Congress of Soil Science (additional materials)...”
Conference Proceeding Book -
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11Published 1974Conference Proceeding Book
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12Published 1974Conference Proceeding Book
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14Published 1974Conference Proceeding Book