TY  - BOOK
AU  - Lessler Judith T
AU  -  Kalsbeek William D
TI  - Nonsampling error in surveys
T2  - Wiley series in probability and mathematical statistics: applied probability and statistics
U1  - B2817, N2 
PY  - 1992///
CY  - New York    
PB  -  John Wiley       
KW  -  Nonsampling
KW  - Mathematics
ER  -