00505 a2200205 4500 139230 OSt 20211013160105.0 9788126515240 519.52 C64S Cochron, William G. Sampling techniques by William G. Cochran 3rd ed. New Delhi Wiley India 2013 428p. Economics Sampling (Statistics) ddc BK 11941 11941 0 0 ddc 0 0 TXB CURAJ CURAJ 2014-03-12 ECO 0.00 3 519.52 C64S 14902 2024-11-21 2024-10-22 2020-09-02 BK 0 0 ddc 0 0 TXB CURAJ CURAJ 2014-03-12 ECO 0.00 8 519.52 C64S 14903 2025-12-08 2025-11-24 2020-09-02 BK