000 00267nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aTodhunter, I
245 0 _aSpherical Trigonometry
260 _bMacmillan & Co
_aLondon
_c1932
650 _aTrigonometry
942 _cBK
999 _c7503
_d7503