00276nam a2200109Ia 4500008004100000040002500041082001300066100003500079245003500114260000900149300000800158230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a 514 P97  aRomeral,  CiprianoJr.  B. and  0a(The) New plane trigonometry .  c1980  a323