Dyfyniad APA

Rhind, D. (1997). Framework for the world. GeoInformation International.

Dyfyniad Arddull Chicago

Rhind, David. Framework for the World. New York: GeoInformation International, 1997.

Dyfyniad MLA

Rhind, David. Framework for the World. GeoInformation International, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.