000 00309nam a2200121Ia 4500
008 221001s1970 xx 000 0 eng d
082 _a519 GUP
100 _aGupta, D. B.
245 0 _aSources and natureof the official statistics
260 _aDelhi
_bRanjit Prints
_c1970
300 _a335p.
942 _2ddc
_cBK
999 _c4997
_d4997