00338nam a2200133Ia 4500008004100000020001300041040001600054041001200070082001700082100001700099245004300116260003400159300001100193230917s9999||||xx |||||||||||||| ||und||  cPOU11.95  e15209aMAIN  aEnglish  a301.242 E35S  aEyerman, Ron 0aSocial movements: a cognitive approach  aCambridgebPolity pressc1991  a184 p.