APA (7th ed.) Citation

McWhirter, N. (1985). The Guinness book of answers (5th ed.). Guinness Books.

Chicago Style (17th ed.) Citation

McWhirter, Norris. The Guinness Book of Answers. 5th ed. [Enfield?]: Guinness Books, 1985.

MLA (9th ed.) Citation

McWhirter, Norris. The Guinness Book of Answers. 5th ed. Guinness Books, 1985.

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