APA (7th ed.) Citation

Blackhall, S. (1997). The world's greatest blunders. Octopus Books.

Chicago Style (17th ed.) Citation

Blackhall, Sue. The World's Greatest Blunders. London: Octopus Books, 1997.

MLA (9th ed.) Citation

Blackhall, Sue. The World's Greatest Blunders. Octopus Books, 1997.