APA (7th ed.) Citation

Harkness. Reducing cancer risk: Everything you need to know about. Prima Publ. 1999.

Chicago Style (17th ed.) Citation

Harkness. Reducing Cancer Risk: Everything You Need to Know About. USA: Prima Publ. 1999.

MLA (8th ed.) Citation

Harkness. Reducing Cancer Risk: Everything You Need to Know About. Prima Publ. 1999.

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