000 00300nam a2200121Ia 4500
008 221001s1977 xx 000 0 eng d
082 _a519.5 DHI
100 _aDhingra, I. C.
245 0 _aElementary statistics
260 _aNew Delhi
_bSultan Chand
_c1977
300 _aii, 160p.
942 _2ddc
_cREF
999 _c19619
_d19619