Martin-Gay. Elayn. <br/><br/>
Pearson New International Edition. 

 - 6th, ed. 
 - England :  Pearson Educational,  2014. 
 - iv,718 p. 
<br/><br/><label>ISBN: </label>9781292024899 
<br/><br/><label>Dewey Class. No.: </label>510  / MAR