What has the author Robert L Keith written?

There doesn't seem to be a well-known author named Robert L. Keith. It's possible that:

* The name is slightly different: Double-check the spelling or middle initial.

* The author is not widely published: They may have written smaller works or self-published.

* The author uses a different name: They might write under a pen name or use initials instead of their full name.

To find more information, you could try:

* Searching online databases: Use sites like WorldCat, LibraryThing, or Goodreads and experiment with different spellings or keywords.

* Contacting libraries or literary organizations: They may have information about lesser-known authors.

* Checking online author directories: These websites sometimes list authors who are not widely published.

Let me know if you have any more details about the author, like a specific book title or genre, and I'll do my best to help!