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  1. 1

    Manual on heat detection, artificial insemination and pregnancy diagnosis for water buffalo. מאת De Guzman, M. R.

    יצא לאור 1989
    ספר

    Manual on heat detection, artificial insemination and pregnancy diagnosis for water buffalo.
  2. 2

    Biological nitrogen fixation in paddy field studied by in SITU acetylene-reduction assays מאת Watanabe, Iwao, Lee,K.K, Alimagno,B.V, Sato,M, Del Rosario,D.C, De Guzman,M.R

    יצא לאור 1977
    Analytics

    Biological nitrogen fixation in paddy field studied by in SITU acetylene-reduction assays

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