APA (7th ed.) Citation

Lowson, I., O'Brien, D., & Marshall, K. (2002). World of the rings: The unauthorised guide to the world of JRR Tolkien. Reynolds & Hearn.

Chicago Style (17th ed.) Citation

Lowson, Iain, Daniel O'Brien, and Keith Marshall. World of the Rings: The Unauthorised Guide to the World of JRR Tolkien. London: Reynolds & Hearn, 2002.

MLA (8th ed.) Citation

Lowson, Iain, et al. World of the Rings: The Unauthorised Guide to the World of JRR Tolkien. Reynolds & Hearn, 2002.