International Geographical Union. Commission on Geographical Education. (1992). International research in geographical and environmental education. La Trobe University Press.
Chicago Style aipamenaInternational Geographical Union. Commission on Geographical Education. International Research in Geographical and Environmental Education. Bundoora, Vic.: La Trobe University Press, 1992.
MLA aipamenaInternational Geographical Union. Commission on Geographical Education. International Research in Geographical and Environmental Education. La Trobe University Press, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.