APA (7th ed.) Citation

Duff, H., & Allen, E. (2010). Elixir. Simon & Schuster.

Chicago Style (17th ed.) Citation

Duff, Hilary, and Elise Allen. Elixir. NY: Simon & Schuster, 2010.

MLA (9th ed.) Citation

Duff, Hilary, and Elise Allen. Elixir. Simon & Schuster, 2010.

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