00303nam a2200109Ia 4500082001900000100003700019245006400056260002500120300001300145500000500158700003000163  a302.3bM147.SG  aMcGrath, J. E. and Altman, Irwin  aSmall group researchba synthesis and critique of the field  aNew YorkbHoltc1966  ax, 601p.  a  aAltman, Irwin ; jt. auth.