APA (7th ed.) Citation

Shaffer, M. A., & Barrows, A. (2009). The Guernsey Literary and Potato Peel Pie Society (This paperback ed.). Bloomsbury.

Chicago Style (17th ed.) Citation

Shaffer, Mary Ann, and Annie Barrows. The Guernsey Literary and Potato Peel Pie Society. This paperback ed. London [etc.]: Bloomsbury, 2009.

MLA (9th ed.) Citation

Shaffer, Mary Ann, and Annie Barrows. The Guernsey Literary and Potato Peel Pie Society. This paperback ed. Bloomsbury, 2009.