003340000a22001210004500060000800000082001500008100002200023245005600045260003700101260000900138300000800147650005700155  a100  a302.34 STO  aStogdill, Ralph M  aIndividual behavior and group achievement: a theory  aNewyork, Oxford university press  c1959  a352  aSocial interaction/individual behaviour-small groups