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Guide to Chamber of Commerce of the United States of America. Publications. 5332. Kheel Center for Labor-Management Documentation and Archives, Martin P. Catherwood Library, Cornell University.

Chamber of Commerce of the United States of America. Communications Development Division. Videotape collection, 1988-1992. Schlesinger Library, Radcliffe Institute, Harvard University.

Kumpulan sokongan politik di Amerika Syarikat