TY  - JOUR
A1  - Beatty, P.
A1  - Herrmann, D.
A1  - Puskar, C.
A1  - Kerwin, J.
T1  - Don’t know’ responses in surveys: Is what i know what you want to know and do i want you to know it?
Y1  - 1998
DO  - 10.1080/741942605
VL  - 6
IS  - 4

ER  -