| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Encyclopedia of Modern American Extremists and Extremist Groups, 2nd Edition | 978-1-61069-789-7 (1-61069-789-8) | 2016 | Shannon L. Kenny |
| Gold: A Cultural Encyclopedia | 978-0-313-38430-1 (0-313-38430-4) | 2011 | |