APA (7th ed.) Citation

Simpson, A. (1992). Mastering WordPerfect 5.1 for Windows. SYBEX.

Chicago Style (17th ed.) Citation

Simpson, Alan. Mastering WordPerfect 5.1 for Windows. San Francisco: SYBEX, 1992.

MLA (9th ed.) Citation

Simpson, Alan. Mastering WordPerfect 5.1 for Windows. SYBEX, 1992.

Warning: These citations may not always be 100% accurate.