Blalock, Hubert M. <br/><br/>
Casual Inferences in Nonexperimental Research 

 - North Carolina  University Press  1964 
 - xii,200p.  Kosambi Collection 
<br/><br/><label>Subjects--Topical Terms: </label><br/>R192
<br/><br/><label>Dewey Class. No.: </label>R192  / J4