G.O. ยท G. Oppenheim
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Boxing in Philadelphia: Tales of Struggle and Survival | Paperback | 978-1-4422-6064-1 (1-4422-6064-5) | 2015 |
| Boxing in Philadelphia: Tales of Struggle and Survival | Hardcover | 978-1-4422-3645-5 (1-4422-3645-0) | 2014 |