Cita APA (7th ed.)
Rhind, D. (1997). Framework for the world. GeoInformation International.
Cita Chicago (17th ed.)
Rhind, David. Framework for the World. New York: GeoInformation International, 1997.
Cita MLA (9th ed.)
Rhind, David. Framework for the World. GeoInformation International, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.