APA (7th ed.) Citation

Beasley, M., Fitzgerald, I., Anderson, H., & Taylor, S. (1999). Guinness amazing future. Guinness.

Chicago Style (17th ed.) Citation

Beasley, Mark, Ian Fitzgerald, Hephzibah Anderson, and Sarah Taylor. Guinness Amazing Future. London: Guinness, 1999.

MLA (8th ed.) Citation

Beasley, Mark, et al. Guinness Amazing Future. Guinness, 1999.