Blalock, H.M. <br/><br/>
Causal models in the social sciences. 

 - 2nd ed. 
 - New York:  Aldine de Gruyter,  1985. 
 - x,448p.:  ill;  22.5cm. 
<br/><br/>Include bibliographical references and index 
<br/><br/><label>ISBN: </label>0202303144 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Social sciences 
<br/><br/><label>LC Class. No.: </label>SJMC H61.25.C38