M G*** · m r · M. Ross · Ross G
Rowman & Littlefield Publishers · Scarecrow Press
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Operas in English: A Dictionary | 978-0-8108-8272-0 (0-8108-8272-8) | 2012 |
| Operas in German: A Dictionary | 978-1-4422-4796-3 (1-4422-4796-7) | 2018 |