000 00270nam a2200097Ia 4500
008 150310s9999 xx 000 0 und d
100 _aGUPTA K N & KAUSHISH J P
245 _aWORKSHOP CALCULATIONS AND SCIENCE VOL - II
250 _a3
260 _c1975
_b"NEW HEIGHTS, DELHI"
999 _c6783
_d6783