00617nam a22001931 4500 1/18217 011127s1973 enk 1 eng d 0435538659 18756 DLC GR-PeUP 519.8 SO Som, Ranjan Kumar. A manual of sampling techniques / Ranjan Kumar Som London: Heinemann Educational, 1973 xvi, 384 p. ill. ; 28 cm. Includes index Sampling (Statistics). INST UNIPILB MAIN 20040709 519.8 SO 00137699 00137699 LOAN 0 1 /webopac/covers/01/18756_0435538659.jpg