Kraak, M. J., & Ormeling, F. (2010). Cartography: Visualization of geospatial data (3rd ed.). Prentice Hall.
Cita Chicago (17th ed.)Kraak, M. J., i Ferjan Ormeling. Cartography: Visualization of Geospatial Data. 3rd ed. New York: Prentice Hall, 2010.
Cita MLA (9th ed.)Kraak, M. J., i Ferjan Ormeling. Cartography: Visualization of Geospatial Data. 3rd ed. Prentice Hall, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.