APA (7th ed.) Citation

Guinness World Records. (2007). Guinness world records 2008. Guinness World Records.

Chicago Style (17th ed.) Citation

Guinness World Records. Guinness World Records 2008. London: Guinness World Records, 2007.

MLA (9th ed.) Citation

Guinness World Records. Guinness World Records 2008. Guinness World Records, 2007.

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