APA (7 वां संस्करण) प्रशस्ति पत्र

Longley, P., Goodchild, M. F., Maguire, D. J., & Rhind, D. (2015). Geographic information science & systems (Fourth edition.). Wiley.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Longley, Paul, Michael F. Goodchild, D. J. Maguire, और David Rhind. Geographic Information Science & Systems. Fourth edition. Hoboken, NJ: Wiley, 2015.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Longley, Paul, et al. Geographic Information Science & Systems. Fourth edition. Wiley, 2015.