APA (7th ed.) Citation

Guinness World Records Limited. (2010). Guinness world records 2010. Guinness World Records.

Chicago Style (17th ed.) Citation

Guinness World Records Limited. Guinness World Records 2010. [London]: Guinness World Records, 2010.

MLA (9th ed.) Citation

Guinness World Records Limited. Guinness World Records 2010. Guinness World Records, 2010.

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