00261nam a2200109Ia 4500008004100000041000800041082002500049100001400074245004600088260000900134300000800143211209s1973    xx            000 0 und d  aeng  a621.4021 N73 VAN/SON  aVAN WYLEN  aFUNDAMENTALS OF CLASSICAL THERMODYNAMICS   c1973  a724