00333cam a2200121   4500082001500000100002100015245005800036260003500094300000800129490003400137650001600171650002400187  a548.83 SPE1 aSpeakman,J.Clare10aMolecular Structure: its study by Crystal diffraction  aLondonbChemical Societyc1977  a53p  aMonographs for Teachers No.30 0acrystalline 0aMolecular Strucrure