000 00282nam a2200121Ia 4500
008 220201s1967 xx 000 0 eng d
082 _a621.815
_bGUP
100 _aGupta,RB
245 0 _aMachine drawing
260 _bAllahabad:Saroj Prakashan
_c1967
300 _a206
942 _2ddc
999 _c79671
_d79671