Plutchik, Robert. <br/><br/>
Foundations of experimental research / 
by Robert Plutchik 
 - New York :  Harper & Row,  1968. 
 - xiii, 290 p.  illus. 
 - Harper's experimental psychology series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology, Experimental.<br/>Psychology--Research.<br/>Psychology, Experimental.
<br/><br/><label>LC Class. No.: </label>BF181.P58 1968