共 36 条
[1]
DAVIS JA, 1993, GENERAL SOCIAL SURVE
[4]
1962, GALLUP POLL 0823
[5]
1992, ABS NEWS WASHIN 0701
[6]
1991, HARRIS POLL 0531
[7]
1993, GALLUP GNN US T 0226
[8]
1992, HARRIS POLL 1030
[9]
1993, HARRIS POLL 1001
[10]
1993, NBS NEWS WALL S 0604