APA (7th ed.) Citation

Howell, D. (2000). The unofficial guide to quitting smoking. IDG Books Worldwide.

Chicago Style (17th ed.) Citation

Howell, Donna. The Unofficial Guide to Quitting Smoking. Foster City, CA: IDG Books Worldwide, 2000.

MLA (9th ed.) Citation

Howell, Donna. The Unofficial Guide to Quitting Smoking. IDG Books Worldwide, 2000.

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