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  1. 1
    Design of overhead irrigation systems

    Design of overhead irrigation systems 由 West, E.S

    出版 1934
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  2. 2
    Some effects of green manuring on citrus trees and on the soil

    Some effects of green manuring on citrus trees and on the soil 由 Howard, A.

    出版 1938
    其他作者: “...West, E.S...”
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