APA (7th ed.) Citation

(2007). Hummingbird. Prentke Romich GmbH.

Chicago Style (17th ed.) Citation

Hummingbird. Kassel: Prentke Romich GmbH, 2007.

MLA (9th ed.) Citation

Hummingbird. Prentke Romich GmbH, 2007.

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