American Universities Field Staff, California Institute of Technology. Population Program, Brown, H., & Sweezy, A. R. (1973). Population: Perspective, 1973. Freeman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Universities Field Staff, California Institute of Technology. Population Program, Harrison Brown, और Alan Richardson Sweezy. Population: Perspective, 1973. San Francisco: Freeman, 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAmerican Universities Field Staff, et al. Population: Perspective, 1973. Freeman, 1973.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.