APA (7th ed.) Citation

Christie,Agatha. (2003). The War Years. HarperCollins.

Chicago Style (17th ed.) Citation

Christie,Agatha. The War Years. London: HarperCollins, 2003.

MLA (9th ed.) Citation

Christie,Agatha. The War Years. HarperCollins, 2003.

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