TY  - JOUR
T1  - Who contributes?: Checkbook participation, class biases, and the impact of legal reforms, 1952-1994
AU  - Shields, Todd G.
AU  - Goidel, Robert K.
PY  - 2000
DO  - 10.1177/1532673X00028002004
SP  - 216
EP  - 233
JO  - American Politics Quarterly
VL  - 28
IS  - 2
SN  - 0044-7803
ER  -