APA (7th ed.) Citation

Duvall, J. (2016). The great spruce. G. P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Duvall, John. The Great Spruce. New York: G. P. Putnam's Sons, 2016.

MLA (9th ed.) Citation

Duvall, John. The Great Spruce. G. P. Putnam's Sons, 2016.