APA (7th ed.) Citation

Guinness World Records Limited & Glenday, C. (2011). Guinness world records 2012. Guinness World Records.

Chicago Style (17th ed.) Citation

Guinness World Records Limited and Craig Glenday. Guinness World Records 2012. [London]: Guinness World Records, 2011.

MLA (8th ed.) Citation

Guinness World Records Limited and Craig Glenday. Guinness World Records 2012. Guinness World Records, 2011.

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