Cita APA

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

Chicago Edition Citation

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

Cita MLA

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