Plutchik, Robert. <br/><br/>
Foundations of experimental research   
by Robert Plutchik 
 - New York  Harper and Row Publishers  1968 
 - xiii, 290p.  incl. bibl., app., ind. 
 - Harper's Experimental Psychology Series .
<br/><br/><label>LCCN: </label>68-10196 
<br/><br/><label>Dewey Class. No.: </label>152  / N68