APA (7th ed.) Citation

Lord, H. G. (1985). Friendly software: Programming for real, Book 2. Atheneum.

Chicago Style (17th ed.) Citation

Lord, Harvey G. Friendly Software: Programming for Real, Book 2. New York: Atheneum, 1985.

MLA (9th ed.) Citation

Lord, Harvey G. Friendly Software: Programming for Real, Book 2. Atheneum, 1985.