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Fourth International Congress on Congress Organization, Copenhagen 1966 ; Proceedings ; Types of International Meetings and Material Arrangements for Them ; Participants and Speakers ; Economic and Financial Aspects of Congresses

International Congress on Congress Organization

出版	Union of International Associations, 1967
URL	http://books.google.com.hk/books?id=CxsrPwAACAAJ&hl=&source=gbs_api