Perry, John A.  1931- <br/><br/>
The social web:   an introduction to sociology / 
John and Erna Perry. 
 - 2nd ed. 
 - San Francisco:  Canfield Press,  1978. 
 - 368 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0063867664 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology.