TY  - GEN
AU  - Cochran,William .G
TI  - Sampling Techniques
SN  - 0
U1  - 519.52 COC 
PY  - 1977///
CY  - Rawalpindi
PB  - National Book Foundation
N1  - H.B; Introduction (Page-1), Simple Random Sampling (Pge-18), Sampling Proportions and Percentages (Page-50), The Estimation of Sample Size (Page-72), Stratified Random Sampling (Page-89), Further Aspects of Stratified Sampling (Page-115), Ratio Estimators (Page-150), Regression Estimators (Pge-189), Systematic Sampling (Page-205), Single-Stage Cluster Sampling Clusters of Equal Sizes (Page-233), Single-State Cluster Sampling Clusters of Unequal Sizes (Page-249), Sub sampling with Units of Equal Size (Page-2740, Subsampling with Units of Unequal Sizes (Page-292), Double Sampling (Page-327), Sources of Error in surveys (Page-359),
ER  -