TY  - JOUR
T1  - Survey bias on the front porch: Are all subjects interviewed equally?
AU  - Hess, Frederick M.
AU  - Leal, David L.
PY  - 1999
SP  - 468
EP  - 487
JO  - American Politics Quarterly
VL  - 27
IS  - 4
SN  - 0044-7803
ER  -