APA Citation

Simpson,, A. (1990). Mastering WordPerfect 5.1 (Academic ed.). Singapore:: Tech Publications,.

Chicago Style Citation

Simpson,, Alan. Mastering WordPerfect 5.1. Academic ed. Singapore:: Tech Publications,, 1990.

MLA Citation

Simpson,, Alan. Mastering WordPerfect 5.1. Academic ed. Singapore:: Tech Publications,, 1990.

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