00265nam a2200097   4500082001200000100001500012245003500027260004200062300000800104650005500112  a546 AYL  aAylett B.J  aProblems in Inoganic Chemistry  aLondonbEnlish Univresity Pressc1965  a154  aChemistryaInorganic ChemistryaHydregenaHalogens