00000nam a2200000 a 4500 20251203110118.0 8170002311 020.15195 SEH Sehgal, R.L. Statistical techniques for librarians New Delhi Ess Ess Publications 1998 410p. 23 cm. Library research-Statistical techniques ENGLISH 020 BOOK _ 91484 C 78233 78233 0 0 0 0 PU PU 1999-05-18 0 020.15195 SEH 91484 BK