Wilson, Gerald L. <br/><br/>Groups in context:  leadership and participation in small groups Gerald L. Wilson  - Fourth Edition  - New York:  McGraw-Hill Publishing,  1996  - xxv, 387 pages;  24 cm. <br/><br/><label>ISBN: </label>0070710821 <br/><br/><label>LC Class. No.: </label>HM133  / W52 1996