00417nam a2200145 a 450000500170000002000150001708200160003210000180004824500500006626000320011630000230014849000640017163000170023563000190025220251202164146.0  a0070005540  a302.34bSEA  aSeaman, Don F  aWorking effectively with task-oriented groups  aNew YorkbMcGraw-Hillc1981  ax,118p.b22cm.cHB  aAdult education association professional development series  aSmall groups  aWorking groups