000 00394nam a2200133Ia 4500
008 241226s9999 xx 000 0 und d
020 _a877170722X
082 _a500
_bGUP
100 _aGupta, K K.
245 0 _aScience and Technology (Class 6)
260 _aNew Delhi :
_bFrank Bros. and Co. (Publishers) Ltd. ,
_c2005.
300 _a190 Pages;
650 _aNatural sciences & mathematics
999 _c177760
_d177760