APA (7th ed.) Citation

Martini, S. (2010). The rule of nine. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Martini, Steve. The Rule of Nine. New York: HarperCollins Publishers, 2010.

MLA (9th ed.) Citation

Martini, Steve. The Rule of Nine. HarperCollins Publishers, 2010.

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