(1949). The world at work: The economic and social efforts of the United Nations and the specialized agencies. Chicago: Rotary International.
Chicago-referens (17:e uppl.)The World at Work: The Economic and Social Efforts of the United Nations and the Specialized Agencies. Chicago: Rotary International, 1949.
MLA-referens (8:e uppl.)The World at Work: The Economic and Social Efforts of the United Nations and the Specialized Agencies. Chicago: Rotary International, 1949.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.