Alimagno, B. V. (1977). In situ determination of biological nitrogen fixation by blue-green algae in lowland rice fields [microform]. Photoduplication Service, University of the Philippines Library.
Chicago Style (17th ed.) CitationAlimagno, Bonifacio Villanueva. In Situ Determination of Biological Nitrogen Fixation by Blue-green Algae in Lowland Rice Fields [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
MLA citiranjeAlimagno, Bonifacio Villanueva. In Situ Determination of Biological Nitrogen Fixation by Blue-green Algae in Lowland Rice Fields [microform]. Photoduplication Service, University of the Philippines Library, 1977.
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