Hendrickson, James M. <br/><br/>
Poco a Poco  :  spanish for proficiency 
/ James M. Hendrickson 
 - 2a ed 
 - Boston, Massachusetts  : Heinle & Heinle Publishers  , c1990. 
 - 452 p.   12 u.s.  : il. 
<br/><br/><label>ISBN: </label>0-8384-1851-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spanish language---Grammar---1950-
<br/><br/><label>Dewey Class. No.: </label>468.24 HEN