APA (7th ed.) Citation
Angelou, M. (2008). I know why the caged bird sings: Maya, Angelou. Pearson.
Chicago Style (17th ed.) Citation
Angelou, Maya. I Know Why the Caged Bird Sings: Maya, Angelou. Harlow, England: Pearson, 2008.
MLA (9th ed.) Citation
Angelou, Maya. I Know Why the Caged Bird Sings: Maya, Angelou. Pearson, 2008.
Warning: These citations may not always be 100% accurate.