Libo, Lester M. <br/><br/>
Measuring group cohesivenss / 
Lester M. Libo. 
 - Michigan :  University of Michigan,  1953. 
 - 111p. :  illus.,  23 cm. 
<br/><br/><label>Dewey Class. No.: </label>301.154  / L113 N53M