APA (7th ed.) Citation

Wallis, P. J. L. (1982). Portable programming. Macmillan.

Chicago Style (17th ed.) Citation

Wallis, Peter J. L. Portable Programming. London: Macmillan, 1982.

MLA (8th ed.) Citation

Wallis, Peter J. L. Portable Programming. Macmillan, 1982.