00407nam a2200121Ia 4500008004100000040002500041082001600066100009900082245003700181250001600218260004300234300000800277230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a516. 24 K29  aKells, Lyman M., Willis F. Kern, James R. Bland, Lyman M. Kells, Willis F. Kern, James R. Blan 0aPlane and spherical trigonometry  a3rd Edition  b McGraw-Hill Book Company , Inc.c1978  a290