APA (7th ed.) Citation

Campbell, M. (1990). Teach yourself Word perfect 5.1. Osborne McGraw-Hill.

Chicago Style (17th ed.) Citation

Campbell, Mary. Teach Yourself Word Perfect 5.1. Osborne McGraw-Hill, 1990.

MLA (8th ed.) Citation

Campbell, Mary. Teach Yourself Word Perfect 5.1. Osborne McGraw-Hill, 1990.

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