Cita APA (7a ed.)

Kraak, M., & Ormeling, F. J. (1997). Cartography: Visualization of spatial data. Longman.

Cita Chicago Style (17a ed.)

Kraak, Menno-Jan, y F. J. Ormeling. Cartography: Visualization of Spatial Data. Harlow: Longman, 1997.

Cita MLA (9a ed.)

Kraak, Menno-Jan, y F. J. Ormeling. Cartography: Visualization of Spatial Data. Longman, 1997.