Hedrick, P. W. (1984). Population biology: The evolution and ecology of populations. Jones and Bartlett Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHedrick, Philip W. Population Biology: The Evolution and Ecology of Populations. Boston: Jones and Bartlett Publishers, 1984.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHedrick, Philip W. Population Biology: The Evolution and Ecology of Populations. Jones and Bartlett Publishers, 1984.
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