APA (7th ed.) Citation

Costain, M., & Hanna, G. (2017). Penguin. Windmill Books.

Chicago Style (17th ed.) Citation

Costain, Meredith, and Gary Hanna. Penguin. New York: Windmill Books, 2017.

MLA (9th ed.) Citation

Costain, Meredith, and Gary Hanna. Penguin. Windmill Books, 2017.

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