Ekeh, Peter P. <br/><br/>
Social exchange theory, the two traditions 

 - London  Heinemann Educational Books  1974 
 - xv,237p.  23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology
<br/><br/><label>LC Class. No.: </label>HM24.E37