APA (7th ed.) Citation

Poppelbaum, W. J. (1972). Computer hardware theory. Macmillan.

Chicago Style (17th ed.) Citation

Poppelbaum, W. J. Computer Hardware Theory. New York: Macmillan, 1972.

MLA (9th ed.) Citation

Poppelbaum, W. J. Computer Hardware Theory. Macmillan, 1972.