Não informado. (1959). Dental school newsletter. University of Puerto Rico, School of Dentistry.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Dental School Newsletter. San Juan: University of Puerto Rico, School of Dentistry, 1959.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Dental School Newsletter. University of Puerto Rico, School of Dentistry, 1959.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.