APA (7th ed.) Citation

Willis, C., & Paddon, D. J. (1992). Abstraction and specification with Modula-2 (1. publ.). Pitman.

Chicago Style (17th ed.) Citation

Willis, Claire, and Derek J. Paddon. Abstraction and Specification with Modula-2. 1. publ. London: Pitman, 1992.

MLA (9th ed.) Citation

Willis, Claire, and Derek J. Paddon. Abstraction and Specification with Modula-2. 1. publ. Pitman, 1992.