Origin of modern calculating machines /

Ижил төстэй зүйлс

• Modern electronic calculations/
  -н: 404647 Dulin, John J.
  Хэвлэсэн: (1976)
• Calculators and adding machines
  -н: 8096 British Standards Institution
• Mathematics by calculating machine /
  -н: 456893 Thomas, Thomas Leslie, зэрэг
  Хэвлэсэн: (1962)
• How to use adding and calculating machines/
  -н: 403139 Walker, Arthur Lee, зэрэг
  Хэвлэсэн: (1979)
• Digital calculating machines and their application to scientific and engineering work /
  -н: 224844 Montgomerie, G. A.
  Хэвлэсэн: (1956)