Hare, Alexander Paul, Edgar, F. Borgatta & Robert, F. Bales <br/><br/>
Small groups  studies in social interaction 

 - Rev ed. 
 - New York  Alfred A. Knopf  1965 
 - 706 p. 
 -   .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>301.15  / H274