00338nam a22001217a 4500020001800000082002000018100001900038245005100057250000600108260003900114300000800153650005500161  a981-214-324-6  a006.6869 JON/HA  aGerald E Jones  aHarvard Graphics For Windows Instant Reference  aI  aSingaporebTech Publicationsc1992  a261  awindows and harvard graphicsacharting and drawing