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  1. 1

    The Masagana/Margate system of planting rice: a study of an agricultural innovation by Covar, Prospero R

    Published 1960
    Book


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  2. 2

    Optimum size in objective yield estimation [microform] by Flores, Quintin G.

    Published 1974
    Visual Material


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  3. 3

    Rice fertilization a six-year isotope study on nitrogen and phosphorus fertilizer utilization by International Atomic Energy Agency

    Published 1970
    Book


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