000 00260nam a2200109Ia 4500
008 211209s1957 xx 000 0 und d
041 _aeng
082 _a516.24 N57 RAO
100 _aRAO T A N
245 _aHIGHER TRIGONOMETRY AND SOLID GEOMETRY
260 _c1957
999 _c2711
_d2711