International Union for Conservation of Nature and Natural Resources & World Conservation Union Commission on Environmental Strategy and Planning. IUCN - CESP working paper.
Chicago-Zitierstil (17. Ausg.)International Union for Conservation of Nature and Natural Resources und World Conservation Union Commission on Environmental Strategy and Planning. IUCN - CESP Working Paper. Sacramento, Calif.
MLA-Zitierstil (9. Ausg.)International Union for Conservation of Nature and Natural Resources und World Conservation Union Commission on Environmental Strategy and Planning. IUCN - CESP Working Paper.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.