Freedman, David. <br/><br/>
Statistics / 
David Freedman, Robert Pisani, Roger Purves. 
 - New York :  Norton,  c1978. 
 - xv, 506, [83] p. :  ill. ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0393090760 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical statistics.<br/>Statistics