APA (7th ed.) Citation

Horn, J., & Horn, J. (1978). Systems/data processing A-Z factomatic. Prentice-Hall.

Chicago Style (17th ed.) Citation

Horn, Jack, and Jean Horn. Systems/data Processing A-Z Factomatic. Englewood Cliffs, N.J.: Prentice-Hall, 1978.

MLA (9th ed.) Citation

Horn, Jack, and Jean Horn. Systems/data Processing A-Z Factomatic. Prentice-Hall, 1978.