00281nam a2200097Ia 4500008004100000082001500041100001700056245005400073260004500127300001100172190709s9999    xx            000 0 und d  a500 B591E,  aSam S. Blanc 0aExercises and investigations for modern science 3  aNew yorkbHolt, Rineshart and Winsc1963  avi,146