000 00290nam a2200121Ia 4500
008 220201s1976 xx 000 0 eng d
082 _a690
100 _aGurucharansingh
245 0 _aBhavan nirman technology
260 _bDelhi: Standard Book House
_c1976
300 _a628
942 _2ddc
999 _c80745
_d80745