TY  - BOOK
ED  - U.S. Bureau of the Census
TI  - The accuracy of census statistics with and without sampling                                                                                                                         
U1  - GP 311.21                           
PY  - 1960///
CY  - Washington
PB  - Department of Commerce
KW  - Sampling (Statistics)
KW  - United States - Census
ER  -