American cutting edge.  Level 4. 

 - 3 v. :  ill. ;  30 cm. +  4 sound cassettes (analog. stereo., Dolby processed) 
<br/><br/> Bilingual mini-dictionary in pocket of Students' book. 
<br/><br/>Student's book / Sarah Cunningham, Peter Moor -- Workbook / Jane Comyns Carr, Frances Eales -- Teacher's resource book / Sarah Cunningham, Peter Moor. 
<br/><br/><label>ISBN: </label>9620056302 (Student's book) 9620056345 (Workbook) 9620056388 (Teacher's resource book) 8945063935 (Class cassettes) 8945063978 (Workbook cassettes) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers<br/>English language--Textbooks for foreign speakers--Textbooks for foreign speakers