Edwards, Allen L. <br/><br/>
Experimental design in psychological research 
Allen L. Edwards 
 - 4th ed. 
 - New York:  Holt Rinehart and Winston,  1972. 
 -  488p. 
<br/><br/>Includes index 
<br/><br/><br/>eng 
<br/><br/><label>Dewey Class. No.: </label>152  / EDE