| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Studies in Comparative Religion: 1967 Commemorative Annual Edition | 978-1-933316-54-3 (1-933316-54-3) | 2007 |
| Studies in Comparative Religion: 1968 Commemorative Annual Edition | 978-1-933316-55-0 (1-933316-55-1) | 2008 |
| Studies in Comparative Religion: 1974 Commemorative Annual Edition | 978-1-936597-01-7 (1-936597-01-2) | 2011 |