TY  - BOOK
AU  - Sudman,Seymour
AU  - Bradburn,Norman M.
TI  - Asking questions / 
T2  -  Jossey-Bass series in social and behavioral sciences
SN  - 0875895468
PY  - 1982///
CY  - San Francisco : 
PB  - Jossey-Bass, 
KW  - Social sciences
KW  - Research
KW  - Questionnaires
N1  -  Includes bibliographical references (p. 377-384) and index
ER  -