Não informado. (1961). Development Assistance. Organization for Economic Co-operation and Development.
Chicago-Zitierstil (17. Ausg.)Não informado. Development Assistance. Paris: Organization for Economic Co-operation and Development, 1961.
MLA-Zitierstil (8. Ausg.)Não informado. Development Assistance. Organization for Economic Co-operation and Development, 1961.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.