Odum, E. P. (1971). Fundamentals of ecology (3rd ed.). National Book Store.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOdum, Eugene Pleasants. Fundamentals of Ecology. 3rd ed. Manila: National Book Store, 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOdum, Eugene Pleasants. Fundamentals of Ecology. 3rd ed. National Book Store, 1971.
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