TY  - BOOK
AU  - Sudman, Seymour
AU  - Bradburn, Norman M.
TI  - Asking questions: a practical guide to questionnaire design
T2  - Jossey-Bass Series in Social and Behavioral Sciences
SN  - 0875895468
PY  - 1983///
CY  - UK
PB  - Wiley-Jossey-Bass
KW  - Research
KW  - Questionnaire
ER  -