000 00270nam a2200097Ia 4500
008 210219s9999||||xx |||||||||||||| ||und||
100 _aGopalan R Venkapayya
_923222
245 0 _aEngineering chemistry
_cGopalan R Venkapayya
260 _bVikas Publishing
_c1999
942 _cBK
999 _c58826
_d58826