Hellman, H. (1975). Psychosocial and cultural determinants of population policy. Interdisciplinary Communications Program.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHellman, Hal. Psychosocial and Cultural Determinants of Population Policy. Washington: Interdisciplinary Communications Program, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHellman, Hal. Psychosocial and Cultural Determinants of Population Policy. Interdisciplinary Communications Program, 1975.
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