Cita APA (7a ed.)

Berry, J. K., & Waters, N. (1995). Spatial reasoning for effective GIS (1a ed.). GIS World Books.

Cita Chicago Style (17a ed.)

Berry, Joseph K., y Nigel Waters. Spatial Reasoning for Effective GIS. 1a ed. Fort Collins: GIS World Books, 1995.

Cita MLA (9a ed.)

Berry, Joseph K., y Nigel Waters. Spatial Reasoning for Effective GIS. 1a ed. GIS World Books, 1995.