APA (7th ed.) Citation
Longley, P. (2015). Geographic information science & systems (4th ed.). Wiley.
Chicago Style (17th ed.) Citation
Longley, Paul. Geographic Information Science & Systems. 4th ed. Hoboken, NJ: Wiley, 2015.
MLA (9th ed.) Citation
Longley, Paul. Geographic Information Science & Systems. 4th ed. Wiley, 2015.
Warning: These citations may not always be 100% accurate.