Blalock Jr. , H M, ed. <br/><br/>
Causal models in panel and experimental designs 

 - New York  Aldine Publishing  1985 
 - xi, 287 p. 
<br/><br/><label>ISBN: </label> DM87 
<br/><br/><label>Dewey Class. No.: </label>301.018 B589C