Cita APA (7th ed.)
Guinness World Records Limited. (2010). Guinness world records 2011. Guinness World Records.
Cita Chicago (17th ed.)
Guinness World Records Limited. Guinness World Records 2011. London: Guinness World Records, 2010.
Cita MLA (9th ed.)
Guinness World Records Limited. Guinness World Records 2011. Guinness World Records, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.