APA (7th ed.) Zitazioa
(2002). An introduction to geographical information systems (2nd ed.). Prentice Hall ; Dorling Kindersley.
Chicago Style (17th ed.) Zitazioa
An Introduction to Geographical Information Systems. 2nd ed. Harlow, England ; New York ; New Deli: Prentice Hall ; Dorling Kindersley, 2002.
MLA (9th ed.) Zitazioa
An Introduction to Geographical Information Systems. 2nd ed. Prentice Hall ; Dorling Kindersley, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.