1 - 3 toradh á dtaispeáint as 3 toradh san iomlán ar an gcuardach 'photoduplication service. university of the ((philippines library) OR (philippines biography))', am iarratais: 0.03s Beachtaigh na torthaí
  1. 1
    de réir Caramancion, Maria Nylda Villena 1945-
    Foilsithe / Cruthaithe 1977
    Visual Material

    Distribution of the forms of nitrogen in some Philippine soils [microform]
  2. 2
    de réir Manguiat, Ireneo Javier 1945-
    Foilsithe / Cruthaithe 1977
    Visual Material

    Microbiological transformations of nitrogen in flooded maahas clay [microform]
  3. 3
    de réir Alimagno, Bonifacio Villanueva 1947-
    Foilsithe / Cruthaithe 1977
    Visual Material

    In situ determination of biological nitrogen fixation by blue-green algae in lowland rice fields [microform].
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