TY  - JOUR
T1  - The policy biases of political activists
AU  - Shaffer, Stephen D.
PY  - 1980
DO  - 10.1177/1532673X8000800102
SP  - 15
EP  - 33
JO  - American Politics Quarterly
VL  - 8
IS  - 1
SN  - 0044-7803
ER  -