00252nam a2200097Ia 4500008004100000082001500041100001500056245002300071260004300094300001700137190709s9999    xx            000 0 und d  a514.5 L848  aLoney, S L 0aPlane Trigonometry  aLondonbSyndics of the cambridgec1983  axi,327,xliii