APA (7th ed.) Citation

Gent, I. P., & Walsh, T. (1994). How not to do it.

Chicago Style (17th ed.) Citation

Gent, Ian P., and Toby Walsh. How Not to Do It. Edinburgh, 1994.

MLA (9th ed.) Citation

Gent, Ian P., and Toby Walsh. How Not to Do It. 1994.