APA (7th ed.) Citation

Mace, D., & Alsop, J. (1957). A simplified system for the use of an automatic calculator. Watson Scientific Computing Laboratory.

Chicago Style (17th ed.) Citation

Mace, David, and Joyce Alsop. A Simplified System for the Use of an Automatic Calculator. New York: Watson Scientific Computing Laboratory, 1957.

MLA (9th ed.) Citation

Mace, David, and Joyce Alsop. A Simplified System for the Use of an Automatic Calculator. Watson Scientific Computing Laboratory, 1957.