Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Gale Group, Shashi Shekhar, y Hui Xiong. Encyclopedia of GIS. New York: Springer, 2008.

Cita MLA (9a ed.)

Gale Group, et al. Encyclopedia of GIS. Springer, 2008.