APA (7th ed.) Citation

Anderson, L. H., & Siegfried, M. (2006). Speak: 20th anniversary edition (Unabridged.). Listening Library.

Chicago Style (17th ed.) Citation

Anderson, Laurie Halse, and Mandy Siegfried. Speak: 20th Anniversary Edition. Unabridged. New York: Listening Library, 2006.

MLA (8th ed.) Citation

Anderson, Laurie Halse, and Mandy Siegfried. Speak: 20th Anniversary Edition. Unabridged. Listening Library, 2006.

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