00340nam a2200157Ia 4500008004100000020000900041035001000050082001500060100001600075245002600091250000600117260003900123300000800162500000600170650000600176210723s9999||||xx |||||||||||||| ||und||  aNULL  a25388  a545.3BPRE  aPress, R. E 4aThe Chemical Electron  a-  aLondonbLongmans, Green & Co. Ltd.  a114  a0  a-