APA-viite (7. p.)

Lee, S. D., & Solopova, E. (2005). The keys of Middle-earth: Discovering medieval literature through the fiction of J.R.R. Tolkien. Palgrave Macmillan.

Chicago-viite (17. p.)

Lee, Stuart D., ja Elizabeth Solopova. The Keys of Middle-earth: Discovering Medieval Literature Through the Fiction of J.R.R. Tolkien. Basingstoke [England] ; New York: Palgrave Macmillan, 2005.

MLA-viite (8. p.)

Lee, Stuart D., ja Elizabeth Solopova. The Keys of Middle-earth: Discovering Medieval Literature Through the Fiction of J.R.R. Tolkien. Palgrave Macmillan, 2005.