TY  - BOOK
AU  - Alwin, Duane F.
TI  - Margins of Error: A Study of Reliability in Survey Measurement
SN  - 0470081488
U1  - 001.433 
PY  - 2007///
CY  - New Jersey
PB  - John Wiley & Sons Inc.
KW  - Surveys
ER  -