APA (7th ed.) Citation

(2015). Guinness World Records 2015. Guiness World Records Ltd.

Chicago Style (17th ed.) Citation

Guinness World Records 2015. London: Guiness World Records Ltd, 2015.

MLA (9th ed.) Citation

Guinness World Records 2015. Guiness World Records Ltd, 2015.

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