Healey, Joseph F.,  1945- <br/><br/>
Statistics :  a tool for social research / 
Joseph F. Healey. 
 - 4th ed. 
 - Belmont, Ca. :  Wadsworth Publishing Co.,  1996. 
 - 551 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0534251528  RM133.20 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Statistical methods<br/>Statistics