APA (7th ed.) Citation

Christie, A. (1961). The pale horse. Harper Collins publishers.

Chicago Style (17th ed.) Citation

Christie, Agatha. The Pale Horse. London: Harper Collins publishers, 1961.

MLA (9th ed.) Citation

Christie, Agatha. The Pale Horse. Harper Collins publishers, 1961.

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