Dyfyniad APA

International Geographical Union. Commission on Geographical Education. (1992). International research in geographical and environmental education. La Trobe University Press.

Dyfyniad Arddull Chicago

International Geographical Union. Commission on Geographical Education. International Research in Geographical and Environmental Education. Bundoora, Vic.: La Trobe University Press, 1992.

Dyfyniad MLA

International Geographical Union. Commission on Geographical Education. International Research in Geographical and Environmental Education. La Trobe University Press, 1992.

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