Παραπομπή APA

Longley, P. A., & ...[et al.]. (2005). Geographical information systems: Principles, techniques, management and applications (2nd ed.). Johnwiley & Sons.

Παραπομπή Chicago Style

Longley, Paul A., και ...[et al.]. Geographical Information Systems: Principles, Techniques, Management and Applications. 2nd ed. New Jersey: Johnwiley & Sons, 2005.

Παραπομπή MLA

Longley, Paul A., και ...[et al.]. Geographical Information Systems: Principles, Techniques, Management and Applications. 2nd ed. Johnwiley & Sons, 2005.