Getis, A., Bjelland, M. D., & Getis, V. (2014). Introduction to geography (Fourteenth edition.). McGraw-Hill Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGetis, Arthur, Mark D. Bjelland, और Victoria Getis. Introduction to Geography. Fourteenth edition. New York, N.Y: McGraw-Hill Education, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGetis, Arthur, et al. Introduction to Geography. Fourteenth edition. McGraw-Hill Education, 2014.
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