Plutchik, Robert. <br/><br/>
Foundations of experimental research  / 
by Robert Plutchik. 
 - London :  Harper & Row,  1968. 
 - viii, 290 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliography (p.257-266). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology, Experimental.
<br/><br/><label>Dewey Class. No.: </label>152