Alensonorin, H. (1974). Biology of Papilio Polytes Ledebouria Eschsch [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-referens (17:e uppl.)Alensonorin, Henrietta. Biology of Papilio Polytes Ledebouria Eschsch [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.
MLA-referens (9:e uppl.)Alensonorin, Henrietta. Biology of Papilio Polytes Ledebouria Eschsch [microform]. Photoduplication Service, University of the Philippines Library, 1974.
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