TY  - GEN
AU  - Warwick, Donald P.
AU  - Lininger, Charles A.
TI  - The Sample Survey : Theory and Practice
SN  - 0-07-068396-4
U1  - 300 
PY  - 1975///
CY  - New York
PB  - Mcgraw-Hill
KW  - Research Methodology
KW  - Social Sciences
ER  -