(2007). Recommendations on payments for ecosystem services in integrated water resources management. United Nations.
Chicago-Zitierstil (17. Ausg.)Recommendations on Payments for Ecosystem Services in Integrated Water Resources Management. New York: United Nations, 2007.
MLA-Zitierstil (9. Ausg.)Recommendations on Payments for Ecosystem Services in Integrated Water Resources Management. United Nations, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.