Jennings, Helen Hall <br/><br/>
Sociometry in group relations  a manual for teachers 
Helen Hall Jennings 
 - 2nd ed. 
 - Westport, Conn.  Greenwood Press  1959 
 - xi, 105 p. : ill. ; 24 cm. 
<br/><br/>p. 100-102 
<br/><br/><label>ISBN: </label>0837164834 
<br/><br/><label>LCCN: </label>72-9829 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociometry