Swartzlander, E. E. (2013). STARS: electronic calculators: desktop to pocket: As with many other devices, calculators also went through a transition from mechanical and electromechanical, to electronic, in the 20th century.
Chicago Style (17th ed.) CitationSwartzlander, Earl E. STARS: Electronic Calculators: Desktop to Pocket: As with Many Other Devices, Calculators Also Went Through a Transition from Mechanical and Electromechanical, to Electronic, in the 20th Century. 2013.
MLA (9th ed.) CitationSwartzlander, Earl E. STARS: Electronic Calculators: Desktop to Pocket: As with Many Other Devices, Calculators Also Went Through a Transition from Mechanical and Electromechanical, to Electronic, in the 20th Century. 2013.
Warning: These citations may not always be 100% accurate.