Rizal Lectures Intramuros, Manila, Constantino, R., De Ocampo, E. A., & Abrille, D. C. A. (1970). The third annual Jose P. Rizal lectures. Department of Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRizal Lectures Intramuros, Manila, Renato Constantino, Esteban A. De Ocampo, और Don Carlos A. Abrille. The Third Annual Jose P. Rizal Lectures. Manila: Department of Education, 1970.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRizal Lectures Intramuros, Manila, et al. The Third Annual Jose P. Rizal Lectures. Department of Education, 1970.
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