What has the author Ernest David written?

There is no known author named Ernest David. It's possible there's a typo or a misunderstanding. Could you please provide more context or information about the author you are looking for?

For example, do you know:

* Any other details about the author? (e.g., nationality, genre they write in, approximate time period of their work)

* The title of any of their books?

* Any other information about their work?

With more information, I may be able to help you find the author you're looking for.