00274nam a2200121Ia 4500008004100000020001500041041000800056100001900064245002500083250001100108260002500119300000800144211209s2005    xx            000 0 und d  a0070607486  aeng  aENGER, ELDON D  aCONCEPTS IN BIOLOGY   a11 ed.  aNEW DELHIbTMHc2005  aXIV