00375nam a22001217a 4500082002700000100003100027245006700058260003800125300001400163526003700177650000800214700003100222  a604.2bHOEcL-12, P-24  aHoelscher, Randolph Philip  aThe teaching of mechanical drawingcHoelscher, Randolph Philip  aNew YorkbJohn Wiley & Sonsc1929  axi, P-229  a0b0c0d604_200000000000000_HOE  aMCE  aHoelscher, Randolph Philip