APA (7th ed.) Citation

Peck, J., & Petrone, V. (2005). Way up high in a tall green tree. Simon & Schuster Books for Young Readers.

Chicago Style (17th ed.) Citation

Peck, Jan, and Valeria Petrone. Way Up High in a Tall Green Tree. New York: Simon & Schuster Books for Young Readers, 2005.

MLA (8th ed.) Citation

Peck, Jan, and Valeria Petrone. Way Up High in a Tall Green Tree. Simon & Schuster Books for Young Readers, 2005.

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