Citazione Stile APA (7a Edizione)

Longley, P. A. (2005). Geographical information systems: Principles, techniques, management, and applications (2nd ed., abridged.). John Wiley & Sons.

Citazione stile Chigago Style (17a edizione)

Longley, Paul A. Geographical Information Systems: Principles, Techniques, Management, and Applications. 2nd ed., abridged. Hoboken, N. J: John Wiley & Sons, 2005.

Citatione MLA (9a ed.)

Longley, Paul A. Geographical Information Systems: Principles, Techniques, Management, and Applications. 2nd ed., abridged. John Wiley & Sons, 2005.