APA Citation

Ahern, C. (2007). P.S. I love you. London: HarperCollins.

Chicago Style Citation

Ahern, Cecelia. P.S. I Love You. London: HarperCollins, 2007.

MLA Citation

Ahern, Cecelia. P.S. I Love You. London: HarperCollins, 2007.

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