E-books in databases

rjm95

I'm interested to hear how others handle e-books from databases such as Archive.org, ebrary, Early English Books Online, Google Books, etc. In Chicago Manual of Style, all that is required for such a book is the URL. But because URLS change and break, CMS advises also giving the name of the source database. However, I cannot discover a way to do this in Zotero.

Any advice?