TY  - BOOK
AU  - Groves, Robert M  .
TI  - Survey nonresponse / 
SN  - 0-471-39627-3
U1  - B28OaMZ:f 
PY  - 2002///
CY  - New York : 
PB  - John Wiley & Sons, Inc. , 
KW  - Social surveys-Response rate
ER  -