APA (7th ed.) Citation

(1990). Guinness book of world records: 1990. Guinness Media.

Chicago Style (17th ed.) Citation

Guinness Book of World Records: 1990. Stamford, CT: Guinness Media, 1990.

MLA (9th ed.) Citation

Guinness Book of World Records: 1990. Guinness Media, 1990.

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