Jones, Leo,  1943- <br/><br/>
Progress towards first certificate. 

 - 2 sound cassettes (150 min.) +  Self-study guide (90 p.) 
<br/><br/><label>ISBN: </label>0521263573 0521274605 (Self-study guide) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching<br/>English language--Textbooks for foreign speakers.
<br/><br/><label>Dewey Class. No.: </label>428.34