Sol�rzano, Helen Sophia. <br/><br/>
Northstar. Focus on listening and speaking,intermediate / authors, Helen S. Sol�rzano, Jennifer P.L. Schmidt. 

 - White Plains, N.Y. : Addison Wesley Longman, 1998. 
 - Viii, 230 p. : ill. ; 25 cm. 
<br/><br/><label>ISBN: </label>0201571781 (pbk.0201571781 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language -- Textbooks for foreign  speakers.        English language -- Spoken English -- Problems, exercises, etc.               Listening -- Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>428.24 SOL