Groot, Adriaan D. De <br/><br/>
Mehtodology : foundations of inference and research in the behavioral sciences 

 - Hague  Mouton & Co  1969 
 - 18,400p 
 - Psyxholigical Studies:6 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>S:44
<br/><br/><label>Dewey Class. No.: </label>S:44  / J9