(1949). The world at work: The economic and social efforts of the United Nations and the specialized agencies. Chicago: Rotary International.
Chicago-viite (17. p.)The World at Work: The Economic and Social Efforts of the United Nations and the Specialized Agencies. Chicago: Rotary International, 1949.
MLA-viite (8. p.)The World at Work: The Economic and Social Efforts of the United Nations and the Specialized Agencies. Chicago: Rotary International, 1949.
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