APA (7th ed.) Citation

Angelou, M., & Winfrey, O. (2015). I know why the caged bird sings (Ballantine books mass market edition.). Ballantine Books.

Chicago Style (17th ed.) Citation

Angelou, Maya, and Oprah Winfrey. I Know Why the Caged Bird Sings. Ballantine books mass market edition. New York: Ballantine Books, 2015.

MLA (9th ed.) Citation

Angelou, Maya, and Oprah Winfrey. I Know Why the Caged Bird Sings. Ballantine books mass market edition. Ballantine Books, 2015.