APA (7th ed.) Citation

Grogan, J. (2009). Marley's big adventure. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Grogan, John. Marley's Big Adventure. New York: HarperCollins Publishers, 2009.

MLA (9th ed.) Citation

Grogan, John. Marley's Big Adventure. HarperCollins Publishers, 2009.

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