000 00271nam a2200121Ia 4500
008 211209s1976 xx 000 0 und d
041 _aeng
082 _a516.24 N76 JHA/SIN
100 _aJHA R S
245 _aTEXT BOOK OF TRIGONOMETRY
260 _c1976
300 _a224
999 _c12420
_d12420