APA (7th ed.) Citation

Held, G. (1989). DOS productivity tips & tricks. Wiley.

Chicago Style (17th ed.) Citation

Held, Gilbert. DOS Productivity Tips & Tricks. New York: Wiley, 1989.

MLA (9th ed.) Citation

Held, Gilbert. DOS Productivity Tips & Tricks. Wiley, 1989.

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