I. S. P. Nation,  <br/><br/>
Researching and analyzing vocabulary / 
I. S. P. Nation, Stuart Webb, USAA. 
 - USA :  HEINLE,   2011. 
 - xi, 355 pages :   tables, figures.   23 cm. 
<br/><br/>Includes bibliographical references.  
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>9781111071189 
<br/><br/><label>Dewey Class. No.: </label>418 Circ.  / N19