000 00406nam a2200169Ia 4500
008 210210b1910 xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a514/20
100 _aDUNCAN (R H)
245 _aPractical curve tracing
260 _aLondon
_bLongmans Green and Company Limited
_c1910
650 _atracing
650 _aPractical
650 _acurve
690 _aGeometry
906 _a007466
999 _c139960
_d139960