Dummer, G. W. A.

• Variable resistors and potentiometers
• An elementary guide to reliability
• Electronic inventions and discoveries
• Electronic inventions, 1745-1976
• Environmental testing techniques for electronics and materials
• Fixed and variable capacitors
• The Timetable of technology
• American Microelectronics Data Annual 1964-65
• American Ultraminiature Component Parts Data 1965-66
• Anglo-American microelectronics data
• Anglo-American Microelectronics Data 1968-69
• Banking automation