APA (7th ed.) Citation
Allan, A., & Murray, P. (1989). Word processing on disk: Student assignment book. Pitman.
Chicago Style (17th ed.) Citation
Allan, Anne, and Paddy Murray. Word Processing on Disk: Student Assignment Book. London: Pitman, 1989.
MLA (9th ed.) Citation
Allan, Anne, and Paddy Murray. Word Processing on Disk: Student Assignment Book. Pitman, 1989.
Warning: These citations may not always be 100% accurate.