000 00296nam a2200121Ia 4500
008 200906s9999 xx 000 0 und d
082 _a514.56 K29
100 _aKELLS,L.M
245 0 _aPLANE AND SPHERICAL TRIGONOMETRY
260 _bMC GRAW HILL, NEW YORK
_c1951
300 _a23X18
942 _cBK
999 _c61970
_d61970