000 00321nam a2200121Ia 4500
008 221001s1989 xx 000 0 eng d
082 _a658 GUP
100 _aGupta, C. B.
245 0 _aVyavsayik sanghthan evam prabandh
260 _aNew Delhi
_bNational Publishing House
_c1989
300 _axvi, 944p.
942 _2ddc
_cBK
999 _c14815
_d14815