Freund, John E. <br/><br/>
Mathematical Statistics / 
John E. Freund  & Ronald E. Walpole 
 - 4th edition 
 - New Jersey :  Prentice-Hall ,  © 1987. 
 - xv, 608 Pages :   illustrations ;  26 cm. 
<br/><br/>Includes index and bibliographical references. 
<br/><br/><label>ISBN: </label>0135621178 978-0135621172 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical statistics <br/>Mathematical statistics --Textbook<br/>Statistics