APA (7th ed.) Citation

Duncan, R., & Weston-Smith, M. (1977). The Encyclopaedia of ignorance: Everything you ever wanted to know about the unknown. Pergamon Press.

Chicago Style (17th ed.) Citation

Duncan, Ronald, and Miranda Weston-Smith. The Encyclopaedia of Ignorance: Everything You Ever Wanted to Know About the Unknown. Oxford [England] ; New York: Pergamon Press, 1977.

MLA (9th ed.) Citation

Duncan, Ronald, and Miranda Weston-Smith. The Encyclopaedia of Ignorance: Everything You Ever Wanted to Know About the Unknown. Pergamon Press, 1977.