APA (7th ed.) Citation

Engelsohn, H. S. (1978). Programming programmable calculators. Hayden Book Co..

Chicago Style (17th ed.) Citation

Engelsohn, Harold S. Programming Programmable Calculators. Rochelle Park, N.J.: Hayden Book Co., 1978.

MLA (9th ed.) Citation

Engelsohn, Harold S. Programming Programmable Calculators. Hayden Book Co., 1978.