Boehm, R. G., Armstrong, D. G., & Hunkins, . F. P. (2000). Geography: The world and its people. Glencoe/McGraw Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBoehm, Richard G., David G. Armstrong, और Francis P. Hunkins. Geography: The World and Its People. Westerville, Ohio : New York: Glencoe/McGraw Hill, 2000.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBoehm, Richard G., et al. Geography: The World and Its People. Glencoe/McGraw Hill, 2000.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.