000 00308nam a2200121Ia 4500
008 220314s9999||||xx |||||||||||||| ||und||
080 _a540.7
100 _aGurtu, J N
245 0 _aChemical essays, Vol.2
260 _bPragati Prakashan, Agra
_c1971
650 _aChemistry-Study and teaching
942 _cBOOK
999 _c21304
_d21304