APA (7th ed.) Citation

Boar, R., & Blundell, N. (1991). The world's greatest unsolved crimes (1. publ.). Hamlyn.

Chicago Style (17th ed.) Citation

Boar, Roger, and Nigel Blundell. The World's Greatest Unsolved Crimes. 1. publ. London: Hamlyn, 1991.

MLA (9th ed.) Citation

Boar, Roger, and Nigel Blundell. The World's Greatest Unsolved Crimes. 1. publ. Hamlyn, 1991.

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