What has the author P B Rumsey written?

There doesn't seem to be a known author named "P B Rumsey". It's possible that:

* The name is misspelled. Double check the spelling and try searching again.

* The author uses a different name. Check online resources like Goodreads or LibraryThing to see if they have a different name listed.

* The author is relatively unknown. If they haven't published widely, they may not have a strong online presence.

Could you provide any additional information, like the type of books they write, or the title of a specific book they have written? This would help narrow down the search.