000 00288nam a2200133Ia 4500
100 _aNagar, A. L & Das, R. K
020 _a0-19-561554-9
250 _a2nd ed
942 _cBK
245 _aBasic statistics
260 _aOUP, New Delhi
_c1976
082 _a311 Nag/Das
300 _ax,424
999 _c32778
_d32778