Ekman, Paul <br/><br/>
Emotion in the human face :  guide-lines for research and an integration of findings / 
by Paul Ekman, Wallace V. Friesen, and Phoebe Ellsworth 
 - New York :  Pergamon Press,  1972 
 - xii, 191 p. :  ill. ; 24 cm. 
<br/><br/>Bibliography : p. (181-187) 
<br/><br/><label>ISBN: </label>0080166431 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Emotions<br/>Facial expression