Adrian, Doff Language in use : upper-intermediate: self study workbook with answer key / Doff Adrian and Christopher Jones - New Delhi : Cambridge University Press, c2004. - 9 p. ; ill. ; 25 cm. ISBN: 8175962240 LCCN: Subjects--Topical Terms: English languageComposition and exer LC Class. No.: PE1111 / . 2004 Dewey Class. No.: 401.9 / A243l