Yabes, L. Y. (1976). A philosophy for human survival. University of the Philippines Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रYabes, Leopoldo Y. A Philosophy for Human Survival. Quezon City: University of the Philippines Press, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रYabes, Leopoldo Y. A Philosophy for Human Survival. University of the Philippines Press, 1976.
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