Kerlinger, Fred N <br/><br/>
Foundations of Behavioral Research 

 - 2th ed.  
 - New Delhi  Surjeet Publications  1983 
 - 741p 
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label> 0 
<br/><br/><label>Dewey Class. No.: </label>O40.1  / K457