APA (7th ed.) Citation

Christie, A. (1969). The adventure of the Christmas pudding. Pan Books.

Chicago Style (17th ed.) Citation

Christie, Agatha. The Adventure of the Christmas Pudding. London: Pan Books, 1969.

MLA (8th ed.) Citation

Christie, Agatha. The Adventure of the Christmas Pudding. Pan Books, 1969.

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