00388nam a2200145Ia 4500008004100000082001700041100002500058245003700083250001200120260004200132300001000174600002300184600002300207650001200230140113s9999    xx            000 0 und d  a577.15.04 J3  a" Sumner, James B. "  aChemistry and methods of enzymes  a3rd Ed.  b"New York : Academic Press Inc, 1953"  a462p.  a" Somers, G. Fred"  a" Somers, G. Fred"  aEnzymes