APA (7th ed.) Citation

Backshall. (2018). Guinness world records: Wild things. Guinness World Records.

Chicago Style (17th ed.) Citation

Backshall. Guinness World Records: Wild Things. [Place of publication not identified]: Guinness World Records, 2018.

MLA (8th ed.) Citation

Backshall. Guinness World Records: Wild Things. Guinness World Records, 2018.