TY  - GEN
AU  - Czaja, Ronald.
AU  - Blair, Johnny
TI  - Designing surveys : a guide to decisions and procedures
AV  - HA31.2 Cza.
PY  - 1996///
PB  - Pine Forge Press
KW  - Surveys
KW  - Sampling (Statistics)
N1  - 6210
ER  -