Kerlinger, Fred N. <br/><br/>
Foundations of behavioral research  educational and psychological inquiry 
Fred N. Kerlinger 
 - Islamabad,  National book foundation;  1964. 
 - vii, 739p. 
<br/><br/> HB 
<br/><br/><br/>eng 
<br/><br/><label>Dewey Class. No.: </label>150.72  / KEF