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 Selected bibliography
 Further reading
- Douglas A. Anderson, "R. W. Chambers and The Hobbit", in Tolkien Studies, Vol. III (eds. Douglas A. Anderson, Michael D.C. Drout, Verlyn Flieger)
- ↑ Christina Scull, Wayne G. Hammond, "Addenda and Corrigenda to The J.R.R. Tolkien Companion and Guide (2006) Vol. 1: Chronology" , Hammond&Scull.com (accessed 14 April 2014)