Philippines (Commonwealth) Office of Adult Education & Philippines (Commonwealth). Office of Adult Education. (1975). A. B. C. ng trapiko sa Maynila: Polyetong panglukbutan ng mga kutsero [microform]. University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines (Commonwealth) Office of Adult Education और Philippines (Commonwealth). Office of Adult Education. A. B. C. Ng Trapiko Sa Maynila: Polyetong Panglukbutan Ng Mga Kutsero [microform]. Quezon City: University of the Philippines Library, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines (Commonwealth) Office of Adult Education और Philippines (Commonwealth). Office of Adult Education. A. B. C. Ng Trapiko Sa Maynila: Polyetong Panglukbutan Ng Mga Kutsero [microform]. University of the Philippines Library, 1975.