TY  - GEN
AU  - Chakravarti, I M
AU  - Laha, R G
AU  - Roy, J
TI  - Handbook of methods applied statistics.V.2: Planning of surveys and experiments
U1  - 519.5 CHA 
CY  - NewYork, John Wiley & Sons INC
KW  - Applied statistics/ Sampling/ Non-Orthogonal design/ Planning/ Surveys
ER  -