00379nam a2200121Ia 4500008004100000082001500041100001700056100002300073245010600096260003700202300001000239650000800249060110s9999    xx            000 0 und d  a420bDOF/L  aDOFF, Adrian  aJONES, Christopher  aLanguage in use : intermediate self study workbook with answer keycAdrian Doff and Christopher Jones  bCambridge University Pressc1994  a136p.  a420