APA (7th ed.) Citation

Cortada, J. W. (1993). Before the computer: IBM, NCR, Burroughs, and Remington Rand and the industry they created, 1865-1956. Princeton University Press.

Chicago Style (17th ed.) Citation

Cortada, James W. Before the Computer: IBM, NCR, Burroughs, and Remington Rand and the Industry They Created, 1865-1956. Princeton: Princeton University Press, 1993.

MLA (9th ed.) Citation

Cortada, James W. Before the Computer: IBM, NCR, Burroughs, and Remington Rand and the Industry They Created, 1865-1956. Princeton University Press, 1993.