00317nam a2200121Ia 4500008004100000100003300041245003200074260003400106300000900140650002400149942000700173999001500180190216s9999||||xx |||||||||||||| ||und||  aAtkins P W&Amp; Friedman R S 0aMolecular Quantum Mechanics  bOxford University Pressc2001  a545p  aChemistry-Chemistry  cBK  c2994d2994