(1974). Perspectives on environment: Essays requested by the panel on environmental education, Commission on College Geography. Assoc. of American Geographers.
Chicago-Zitierstil (17. Ausg.)Perspectives on Environment: Essays Requested by the Panel on Environmental Education, Commission on College Geography. Washington: Assoc. of American Geographers, 1974.
MLA-Zitierstil (9. Ausg.)Perspectives on Environment: Essays Requested by the Panel on Environmental Education, Commission on College Geography. Assoc. of American Geographers, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.