U.S. Dept. of Labor, Bureau of International Labor Affairs 1996

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[C. Michael Aho and Howard F. Rosen]

U.S. Department of Commerce, National Technical Information Service, 1980

所蔵館1館

Office of Foreign Economic Research, U.S. Dept. of Labor : For sale by the Supt. of Docs., U.S. G.P.O. 1980

所蔵館4館

U.S. Department of Commerce, National Technical Information Service 1979

所蔵館1館