| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The 21st Century Crossword Puzzle Dictionary | 978-1-4027-2134-2 (1-4027-2134-X) | 2009 | Kevin McCann |
| The Concise 21st Century Crossword Puzzle Dictionary | 978-1-4549-0705-3 (1-4549-0705-3) | 2013 | " |