00270nam a2200109Ia 4500008004100000022001800041040002500059082001500084100001700099245001400116260003000130240215s9999 xx 000 0 und d a0-13-129875-5 aNORSU-DumcNORSU-Dum a540/D73/C4 aDorin, Henry 0aChemistry bPrentice Hall, Inc.c1989