APA (7th ed.) Citation

Castro, A., & Margiotta, K. (2013). Gustav Gloom and the Four Terrors. Grosset & Dunlap.

Chicago Style (17th ed.) Citation

Castro, Adam-Troy, and Kristen Margiotta. Gustav Gloom and the Four Terrors. New York: Grosset & Dunlap, 2013.

MLA (8th ed.) Citation

Castro, Adam-Troy, and Kristen Margiotta. Gustav Gloom and the Four Terrors. Grosset & Dunlap, 2013.

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