Castro, Oscar,  1933- <br/><br/>
In touch  a begnning American English series student's book 
Oskar Castro 
 - New York  Longman  1979 
 - 3v. ill. 26cm. 
<br/><br/><label>LCCN: </label>79-24918 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Text--books for foreigners