APA (7th ed.) Citation

Kleypas. (2005). It happened one autumn. Avon Books.

Chicago Style (17th ed.) Citation

Kleypas. It Happened One Autumn. New York: Avon Books, 2005.

MLA (8th ed.) Citation

Kleypas. It Happened One Autumn. Avon Books, 2005.

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