APA aipamena

Shekhar, S., & Xiong, H. (2008). Encyclopedia of GIS. Springer.

Chicago Style aipamena

Shekhar, Shashi, and Hui Xiong. Encyclopedia of GIS. New York: Springer, 2008.

MLA aipamena

Shekhar, Shashi, and Hui Xiong. Encyclopedia of GIS. Springer, 2008.