000 00244nam a2200109Ia 4500
100 _aRichard Heineman E
245 _aPlane Trigonometry
250 _a2nd
260 _c1956
_aNew York,
_aToronto,
_aLondon
_bMGH
300 _axii+167+75
942 _cBK
999 _c1014
_d1014