00265nam a2200109Ia 4500008004100000041000800041082001500049100001400064245003700078260003200115300000800147211209s1982    xx            000 0 und d  aeng  a516.24 WIG  aNIGAM H N  aTEXT BOOK OF PLANE TRIGONOMETRY   bGOEL PUBLISHING HOUSEc1982  a176