APA (7th ed.) Citation

Wilhelm, H. (2003). Hello sun! Carolrhoda Books.

Chicago Style (17th ed.) Citation

Wilhelm, Hans. Hello Sun! Minneapolis, Minn.: Carolrhoda Books, 2003.

MLA (9th ed.) Citation

Wilhelm, Hans. Hello Sun! Carolrhoda Books, 2003.

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