Research Observer : volume 12.N 2 August 1997. - Washington : World Bank, 1997. - 260p. ; 24cm.см.. - ISSN-3032. - [5L.][MFN: 13533]
E W-26/1997 - General Stock
Research Observer : Volume 13. N 1. february 1998. - Washington : World Bank, 1998. - 147p. ; 24cmсм.. - ISSN-3032. - [2L.][MFN: 13534]
E W-26/1998 - General Stock
Research Observer : Volume 14. N 2. August 1999. - Washington : World Bank, 1999. - 305p. ; 24cm.см.. - ISSN-0257-3032. - [2l.][MFN: 13535]
E W-26/1999 - General Stock