What has the author Stanley Firmin written?

There is no widely known author by the name of "Stanley Firmin." It's possible this name is misspelled or a pseudonym.

Could you please double-check the name or provide more context? For example,

* Is there a specific book or genre you're looking for?

* Do you have any other information about the author, such as their nationality or time period?

With more details, I might be able to assist you better.