TY  - BOOK
AU  - Sudman,Seymour
AU  - Bradburn,Norman M.
TI  - Asking Questings: A practical guide to Questionnaire design 
U1  - 301.723 
PY  - 1982///
CY  - London
PB  - Jossey-Bass pub.
KW  - Ethics.
KW  - Social Sciences
KW  - Research
KW  - Questionnaries
N1  - Includes index
ER  -