APA ציטוט

Harmon, J. E. (2003). The design and implementation of geographic information systems. Hoboken, N.J: J. Wiley.

Trích dẫn kiểu Chicago

Harmon, John E. The Design and Implementation of Geographic Information Systems. Hoboken, N.J: J. Wiley, 2003.

ציטוט MLA

Harmon, John E. The Design and Implementation of Geographic Information Systems. Hoboken, N.J: J. Wiley, 2003.