(1977). The encyclopaedia of ignorance: Everything you ever wanted to know about the unknown. Pergamon Press.
Citazione stile Chigago Style (17a edizione)The Encyclopaedia of Ignorance: Everything You Ever Wanted to Know About the Unknown. Oxford: Pergamon Press, 1977.
Citatione MLA (9a ed.)The Encyclopaedia of Ignorance: Everything You Ever Wanted to Know About the Unknown. Pergamon Press, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.