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| title | ISBN-13 | year of publication |
|---|---|---|
| 20th Century Rock & Roll-Progressive Rock | 978-1-896522-20-3 | 2000 |
| The Progressive Rock Files | 978-1-896522-70-8 | 2000 |
| The Progressive Rock Files | 978-1-896522-10-4 | 1998 |
| The Progressive Rock Handbook | 978-1-894959-76-6 | 2008 |
| The Psychedelic Rock Files | 978-1-896522-97-5 | 2003 |