International Geographical Union. Commission on Geographical Education. (1992). International research in geographical and environmental education. La Trobe University Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)International Geographical Union. Commission on Geographical Education. International Research in Geographical and Environmental Education. Bundoora, Vic.: La Trobe University Press, 1992.
MLA -ийн эшлэл (9 дэх хэвлэлт)International Geographical Union. Commission on Geographical Education. International Research in Geographical and Environmental Education. La Trobe University Press, 1992.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.