Asher, Herbert B. <br/><br/>
Causal modeling / 
Herbert B. Asher 
 - 2nd ed. 
 - Beverly Hills :  SAGE Publications,  1983 
 - 96 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>0803906544 
<br/><br/><label>LCCN: </label>82-21545 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Statistical methods