World directory of industrial information sources / the Information Technology and Knowledge Management Section. United Nations Industrial Development Organization. Information Technology and Knowledge Management Section Industries Directories. Industrial organization. HD30.35 .W675 2001 333.38 UNW "Sales No. E.01.II.B.11" from back cover. Vienna : United Nations Industrial Development Organization, 2001. 2001. 2001 Text 213 p. : eng