Bernardo, V. (1974). A study of the sequence of mathematics in the high school [microform]. Photoduplication Service, University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBernardo, Vicenta. A Study of the Sequence of Mathematics in the High School [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBernardo, Vicenta. A Study of the Sequence of Mathematics in the High School [microform]. Photoduplication Service, University of the Philippines Library, 1974.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.