00397nam a2200181Ia 4500003000400000005001700004008004100021040000700062041000800069082001600077100001300093245002900106260003300135300001300168365001000181440001000191650001400201OSt20250729111411.0210719s1953    xx            000 0 und d  cAL  aeng  a510.92 BELM  aBell E T  aMen of mathematics Vol 2  aEnglandbPenguin Booksc1953  a645pbPB  b6cRs  nVol 2  aBiography