TY  - GEN
AU  - Parel, C.P.
AU  - Ferrer, P.L.
AU  - De Guzman, G.G.
AU  - Tan, R.H.
AU  - Sinsioco, C.S.
AU  - Caldito, G.C.
TI  - Sampling design and procedures
U1  - 519.52 
PY  - 1973///
CY  - Singapore
PB  - International development research 
KW  - Statistical methods
ER  -