Healey, Joseph F.,  1945- <br/><br/>
Statistics :  a tool for social research / 
Joseph F. Healey. 
 - 3rd ed. 
 - Belmont, Ca. :  Wadsworth Publishing Co.,  1993. 
 - xvi, 550 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0534177425 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Statistical methods<br/>Statistics