APA (7th ed.) Citation

Carle, E. (2015). The very lonely firefly. Puffin Books.

Chicago Style (17th ed.) Citation

Carle, Eric. The Very Lonely Firefly. Great Britain: Puffin Books, 2015.

MLA (9th ed.) Citation

Carle, Eric. The Very Lonely Firefly. Puffin Books, 2015.

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