APA-referens

Harmon, J. E. (2003). The Design and Implementation of Geographic Information Systems. Wiley & Sons, Inc..

Chicago-stil citat

Harmon, John E.. The Design and Implementation of Geographic Information Systems. Wiley & Sons, Inc., 2003.

MLA-referens

Harmon, John E.. The Design and Implementation of Geographic Information Systems. Wiley & Sons, Inc., 2003.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.