APA (7th ed.) Citation

Roberts, A. (2013). The riddles of The hobbit. Palgrave Macmillan.

Chicago Style (17th ed.) Citation

Roberts, Adam. The Riddles of The Hobbit. New York: Palgrave Macmillan, 2013.

MLA (9th ed.) Citation

Roberts, Adam. The Riddles of The Hobbit. Palgrave Macmillan, 2013.

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