APA (7th ed.) Citation

Portis, A. (2020). A new green day (First edition.). Holiday House.

Chicago Style (17th ed.) Citation

Portis, Antoinette. A New Green Day. First edition. New York: Holiday House, 2020.

MLA (8th ed.) Citation

Portis, Antoinette. A New Green Day. First edition. Holiday House, 2020.

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