00242nam a2200097Ia 450000500170000000800410001710000140005824500290007226000350010130000080013620260413100601.0230516s9999||||xx |||||||||||||| ||und||  aGupta I.c 0aA.T. B of Engg Metrology  bDelhi Dhanpat Rai & Sonsc1994  a915