Encyclopedia of GIS

MLA

Shekhar, Shashi; Xiong, Hui, Shashi Shekhar, and Hui Xiong. Encyclopedia of Gis. Springer US, 2008.

APA

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

Chicago

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