What has the author James L Killen written?

I don't have access to real-time information, including specific author data like book lists.

To find out what James L. Killen has written, I recommend these resources:

* Online Bookstores: Search on sites like Amazon, Barnes & Noble, or Goodreads. You can often find author pages with their complete works listed.

* Library Catalogs: Use the online catalogs of your local library to search for authors and their books.

* Author Websites: If the author has a website, it will likely list their publications.

* Literary Databases: Sites like WorldCat or LibraryThing might contain author information.

Good luck in your search!