APA
Ardagh P., . (2002). Why are castles castle-shaped? : 100 1/2 questions about castles answered. London: Faber and Faber.
Chicago
Ardagh Philip, . 2002. Why are castles castle-shaped? : 100 1/2 questions about castles answered. London: Faber and Faber.
Harvard
Ardagh P., . (2002). Why are castles castle-shaped? : 100 1/2 questions about castles answered. London: Faber and Faber.
MLA
Ardagh Philip, . Why are castles castle-shaped? : 100 1/2 questions about castles answered. London: Faber and Faber. 2002.