APA (7th ed.) Citation

Wilkes, M. V. (1972). Time-sharing computer systems (2nd ed.). Macdonald and Co., American Elsevier.

Chicago Style (17th ed.) Citation

Wilkes, M. V. Time-sharing Computer Systems. 2nd ed. London : New York: Macdonald and Co., American Elsevier, 1972.

MLA (8th ed.) Citation

Wilkes, M. V. Time-sharing Computer Systems. 2nd ed. Macdonald and Co., American Elsevier, 1972.