Gude, Kathy. <br/><br/>
Proficiency masterclass / 
Kathy Gude, Michael Duckworth. 
 - Oxford :  Oxford University Press,  1995. 
 - 4 v. :  ill. ;  28 cm. +  2 sound cassettes 
<br/><br/>Student's book -- Teacher's book -- Workbook -- Workbook with answers 
<br/><br/><label>ISBN: </label>0194328236 (student's book) 0194328244 (teacher's book) 0194328333 (workbook) 0194328325 (workbook with answers) 9780194328258 (sound cassettes) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers.<br/>English language--Textbooks for foreign speakers.
<br/><br/><label>LC Class. No.: </label>PE1128 
<br/><br/><label>Dewey Class. No.: </label>428