Bacatan, J. T. (1978). Biological evolution: A philosophical estimate [microfilm]. University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBacatan, Jose T. Biological Evolution: A Philosophical Estimate [microfilm]. Quezon City: University of the Philippines Library, 1978.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBacatan, Jose T. Biological Evolution: A Philosophical Estimate [microfilm]. University of the Philippines Library, 1978.
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