00538nam a2200193 4500 163734 163734 20190430115446.0 B-529375 8170144027 125.00 B-529375 DBAD/PUB 000 Gupta,S.P. Elemantory statistical methods S.P. Gupta New Delhi Sultan 2001 4792/23,Daryaganj, New Delhi 110002 011-3277843 vi,714p. ill. 21cms(hbk) ddc EN 000 GUP 2001