Smith, T. E. (1966). World Population: challenge to development: Summary of the highlights of the World Population Conference, Belgrade, Yugoslavia, 30 August to 10 September 1965. United Nations.
Chicago-Zitierstil (17. Ausg.)Smith, Thomas E. World Population: Challenge to Development: Summary of the Highlights of the World Population Conference, Belgrade, Yugoslavia, 30 August to 10 September 1965. New York: United Nations, 1966.
MLA-Zitierstil (9. Ausg.)Smith, Thomas E. World Population: Challenge to Development: Summary of the Highlights of the World Population Conference, Belgrade, Yugoslavia, 30 August to 10 September 1965. United Nations, 1966.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.