TY  - BOOK
AU  - Bradburn, Norman M.,
AU  - Sudman,Seymour
AU  - Blair, Edward,
TI  - Improving interview methods and questionnaire disign: Response effects to threatening questions in survey research 
T2  - The norc series in social research
SN  - 087589402x
AV  - HN29 B73
PY  - 1979///
CY  - San fancisco
PB  - Jossey-Bass
KW  - Encuestas
KW  - Ciencias sociales
KW  - Investigación
KW  - Entrevistas
KW  - Aspectos psicologicos
ER  -