Ignacio, R., & Invernizio, C. (1977). Malupit na ina [microform]. Photoduplication Service.University of the Philippines Library.
Chicago-viite (17. p.)Ignacio, Rosendo, ja Carolina Invernizio. Malupit Na Ina [microform]. Quezon City: Photoduplication Service.University of the Philippines Library, 1977.
MLA-viite (9. p.)Ignacio, Rosendo, ja Carolina Invernizio. Malupit Na Ina [microform]. Photoduplication Service.University of the Philippines Library, 1977.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.