APA (7th ed.) Citation

O'Dell, K. L. Why is hummingbird tiny? Sunrise Publishers.

Chicago Style (17th ed.) Citation

O'Dell, Kathryn L. Why Is Hummingbird Tiny? India: Sunrise Publishers.

MLA (9th ed.) Citation

O'Dell, Kathryn L. Why Is Hummingbird Tiny? Sunrise Publishers.

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