North Carolina. University, Carolina Population Center, & Price, D. O. (1967). The 99th hour: The population crisis in the United States. University of North Carolina Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNorth Carolina. University, Carolina Population Center, और Daniel O. Price. The 99th Hour: The Population Crisis in the United States. Chapel Hill: University of North Carolina Press, 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNorth Carolina. University, et al. The 99th Hour: The Population Crisis in the United States. University of North Carolina Press, 1967.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.