APA (7th ed.) Citation

Lloyd. (1993). The Guinness book of helicopter facts and feats. Guinness Pubs.

Chicago Style (17th ed.) Citation

Lloyd. The Guinness Book of Helicopter Facts and Feats. Middlesex: Guinness Pubs, 1993.

MLA (8th ed.) Citation

Lloyd. The Guinness Book of Helicopter Facts and Feats. Guinness Pubs, 1993.

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