American Society of Mechanical Engineers. Internal Combustion Engine Division. Technical Conference, American Society of Mechanical Engineers. Internal Combustion Engine Division, Somerscales, E. F. C., & Zagotta, A. A. (1989). History of the internal combustion engine: Presented at the Eleventh Annual Fall Technical Conference of the ASME Internal Combustion Engine Division, Dearborn, Michigan, October 15-18, 1989. American Society of Mechanical Engineers.

American Society of Mechanical Engineers. Internal Combustion Engine Division. Technical Conference, American Society of Mechanical Engineers. Internal Combustion Engine Division, E. F. C. Somerscales, a A. A. Zagotta. History of the Internal Combustion Engine: Presented at the Eleventh Annual Fall Technical Conference of the ASME Internal Combustion Engine Division, Dearborn, Michigan, October 15-18, 1989. New York, N.Y.: American Society of Mechanical Engineers, 1989.

American Society of Mechanical Engineers. Internal Combustion Engine Division. Technical Conference, et al. History of the Internal Combustion Engine: Presented at the Eleventh Annual Fall Technical Conference of the ASME Internal Combustion Engine Division, Dearborn, Michigan, October 15-18, 1989. American Society of Mechanical Engineers, 1989.