Hendrickson, James M. <br/><br/>
Poco a Poco; Spanish for proficiency / 
by James M. Hendrickson. 
 - Boston :  Heinle & Heinle,  1986. 
 - xx, 492 p: ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spanuish language--Coversation and Phrase books<br/>Spanish language--Grammar