Cita APA (7a ed.)

Sage Publications, Sage eReference (Online service), & Kemp, K. K. (2008). Encyclopedia of geographic information science. SAGE Publications.

Cita Chicago Style (17a ed.)

Sage Publications, Sage eReference (Online service), y Karen K. Kemp. Encyclopedia of Geographic Information Science. Los Angeles: SAGE Publications, 2008.

Cita MLA (8a ed.)

Sage Publications, et al. Encyclopedia of Geographic Information Science. SAGE Publications, 2008.