00293nam a2200109Ia 4500008004100000020001800041082001500059100002100074245004300095260003700138300000800175190710s9999    xx            000 0 und d  a0-13-475020-9  a301.152 Of  aOfshe, Richard J 0aInterpersonal behavior in small groups  aNew JerseybPrentice-Hall.c1973  a792