APA ציטוט

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

Trích dẫn kiểu Chicago

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

ציטוט MLA

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