Garland Publishing · Routledge
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Encyclopedia of Recorded Sound in the United States | 978-0-8240-4782-5 (0-8240-4782-6) | 1993 |
| Opera | 978-1-138-97760-0 (1-138-97760-8) | 2015 |
| Opera: A Research and Information Guide | 978-0-8153-3516-0 (0-8153-3516-4) | 2000 |
A.M. · G. A. · G A. M. · G.M. · G. Marco · Guy A. · Guy Anthony De Marco · Guy Marco