APA Citation

Christie, A. (1968). By the pricking of my thumbs. London: HarperCollins Publishers.

Chicago Style Citation

Christie, Agatha. By the Pricking of My Thumbs. London: HarperCollins Publishers, 1968.

MLA Citation

Christie, Agatha. By the Pricking of My Thumbs. London: HarperCollins Publishers, 1968.

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