APA Citation

Guinness World Records Limited., & Glenday, C. (2010). Guinness world records 2011. [London]: Guinness World Records.

Chicago Style Citation

Guinness World Records Limited., and Craig Glenday. Guinness World Records 2011. [London]: Guinness World Records, 2010.

MLA Citation

Guinness World Records Limited., and Craig Glenday. Guinness World Records 2011. [London]: Guinness World Records, 2010.

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