00294nam a2200121Ia 450000500170000000800410001704100080005808200130006610000180007924500300009726000360012730000090016320260720174742.0260720s1987    xx            000 0 und d  aeng  a500 DICI  aDickson T. R.  aIntroduction to chemistry  aNewyorkbJohnwiley & Sonsc1987  a600p