• publisher: New York, Macmillan
  • creator: Leach, H. W. [from old catalog] Beakley, George C., [from old catalog] joint author
  • contributor: Beakley, George C., [from old catalog] joint author.
  • Keyword: Slide-rule.
  • years: [1963]
  • pages: 130 p.
  • class: QA73
  • download: pdf file