Gastil, John.
Democracy in small groups: participation, decision making, and communication /
John Gastil 
. - Philadelphia : Gabriola Island : New Society Publishers,  1993 
. - x, 213 p.  tab., schem.  22 cm. 
<br/>К.: Бібліогр. : c. 181-203, Index 
<br/><label>  ISBN: </label>0-86571-274-3 1-55092-217-3