What has the author James Fredric Hamburg written?

There is no record of an author named "James Fredric Hamburg" with published works. It's possible there is a typo in the name, or the author publishes under a different name.

To help you find the correct author, could you provide more information? For example:

* Any other names the author might use?

* The genre or subject matter of the books you are interested in?

* Any specific titles or series?

With more information, I can assist you in finding the author you are looking for.