Kerlinger, Fred N., <br/><br/>
Foundation of behavioral research 

 - 2nd ed. 
 - USA  Holt, Rinehart and Winston  1964 
 - xii, 741 p.:  ill.; 
<br/><br/><label>ISBN: </label>030854628 
<br/><br/><label>LC Class. No.: </label>BF181  / .K45 1964