Amazon.com: Tolkien: How an Obscure Oxford Professor Wrote The Hobbit and Became the Most Beloved Author of the Century: 9781630888060: Brown, Devin: Books
When J.R.R. Tolkien Worked for the Oxford English Dictionary and “Learned More ... Than Any Other Equal Period of My Life” (1919-1920) | Open Culture
Tolkien by John Garth: publications and links
Earth A Dictionary of Tolkien - (Tolkien Illustrated Guides) by David Day (Leather Bound) | Connecticut Post Mall
A Middle English Vocabulary - Tolkien Gateway
Tolkien's Work on the Oxford English Dictionary: Some New Evidence From Quotation Slips
The Best Books on The Oxford English Dictionary - Five Books Expert Recommendations
15 Things You May Not Know About J.R.R. Tolkien | Book Riot
The Story Behind the Creation of the Oxford English Dictionary - Bauman Rare Books
The Ring of Words: Tolkien and the Oxford English Dictionary - Wikipedia