Williams, William.  <br/><br/>
Exploring human society / 
William Willams and Norman Sheffe. 
 - Toronto :  McGraw-Hill Ryerson,  1989. 
 - 373 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0075488574 (hbk.)