Gravetter, Frederick J. <br/><br/>
Statistics for the behavioral sciences / 
Frederick J. Gravetter, Larry B. Wallnau. 
 - 9th edition. 
 - pages cm 
<br/><br/><label>ISBN: </label>9781305504912 
<br/><br/><label>LCCN: </label>2015940372 
<br/><br/><label>LC Class. No.: </label>BF39  / .G72 2013