American Psychological Association, Division of Population and. (1980). Population and Environment. Human Sciences Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Psychological Association, Division of Population and. Population and Environment. New York: Human Sciences Press, 1980.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAmerican Psychological Association, Division of Population and. Population and Environment. Human Sciences Press, 1980.
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