(1997). Government views on the relationships between population and environment. United Nations.
Chicago-Zitierstil (17. Ausg.)Government Views on the Relationships Between Population and Environment. New York: United Nations, 1997.
MLA-Zitierstil (9. Ausg.)Government Views on the Relationships Between Population and Environment. United Nations, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.