000 00307nam a2200121Ia 4500
008 220201s1981 xx 000 0 eng d
082 _bCHA
100 _aChandra, Mahesh, Evam Gupta, P M
245 0 _aVyavsaik sangathan
260 _aBombay
_bHimalya Publishing House
_c1981
300 _a571
942 _2ddc
999 _c23334
_d23334