000 00296nam a2200121Ia 4500
100 _aLyman M Kells
245 _aPlane and Spherical Trigonometry
250 _a3rd
260 _c1951
_aNew York,
_aToronto,
_aLondon
_bMGH
300 _ax+290+118
700 _aWillis F Kern,
_aJames R Bland
942 _cBK
999 _c919
_d919