APA (7th ed.) Citation

Floyd, R. W., & Knuth, D. E. (1989). Addition machines.

Chicago Style (17th ed.) Citation

Floyd, Robert W., and Donald Ervin Knuth. Addition Machines. Stanford, Calif, 1989.

MLA (9th ed.) Citation

Floyd, Robert W., and Donald Ervin Knuth. Addition Machines. 1989.

Warning: These citations may not always be 100% accurate.