TY - JOUR T1 - The persistence of political attitudes among 1960s civil rights activists AU - Marwell, Gerald AU - Aiken, Michael T. AU - Demerath, N.J., III PY - 1987 DO - 10.1086/269041 SP - 359 EP - 375 JO - Public Opinion Quarterly VL - 51 IS - 3 SN - 0033-362X ER -