000 00294nam a2200121Ia 4500
008 211209s1982 xx 000 0 und d
041 _aeng
082 _a516.24 WIG
100 _aNIGAM H N
245 _aTEXT BOOK OF PLANE TRIGONOMETRY
260 _bGOEL PUBLISHING HOUSE
_c1982
300 _a176
999 _c20818
_d20818