Hays David G <br/><br/>
Grouping and dependency theories 
Hays David G 
 - California  Rand         1960 
 - vii,13p.  cm. 
 - United States Air Force Project rand research memorandum , 2646 .
<br/><br/><label>Standard No.: </label>51,236 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LINGUISTICS
<br/><br/><label>Dewey Class. No.: </label>P111:3, K0 (PD)