Jesena, C. C. (1977). Hybrid vigor in F1 varietal crosses from local and introduced corn varieties [microform]. Photoduplication Service. University of the Philippines Library.
Citação do estilo Chicago (17ª ed.)Jesena, Cesar C. Hybrid Vigor in F1 Varietal Crosses from Local and Introduced Corn Varieties [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Citação MLA (9ª ed.)Jesena, Cesar C. Hybrid Vigor in F1 Varietal Crosses from Local and Introduced Corn Varieties [microform]. Photoduplication Service. University of the Philippines Library, 1977.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.