J.M. · J Marx · Jenifer G. Marx · Robert, Marx, Jenifer Marx
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Gold in the Ancient World: How It Influenced Civilization | 978-0-9818991-3-8 (0-9818991-3-7) | 2009 | |
| Graveyard of Gold: A Guide to the World's Richest Shipwrecks | 978-1-55263-656-5 (1-55263-656-9) | 2010 | Robert Marx |
| Treasure Lost at Sea: Diving to the World's Great Shipwrecks | 978-1-55297-872-6 (1-55297-872-9) | 2004 | Robert F. Marx |
Firefly Books · Key Porter Books · Ram Publishing