The situation is, each chapter can be found in three places:
- the individual ‘issue’ in comic book form
- the book of The Collected Omaha
- the book of The Complete Omaha
and significantly: the last two are different: for example,
- “The Collected Omaha, Volume 2” consists of chapters 3-6
- “The Complete Omaha, Volume 2” consists of chapters 2-5
The whole reason I started entering this into BookBrainz was so that I could catalogue where each story (not just the main ‘chapters’, but also the non-numbered ‘side stories’) can be found in print – so that if someone owns a few volumes of “collected”, they can know which volumes of “complete” they should buy (which is a very relevant scenario, since “collected” stops partway through the story which is only finished in “complete”, but as mentioned, the Volumes do not line up).
I’m coming to this from MusicBrainz, where each track of an album has its own Work (or rather, has its own Recording, which typically has a Work) so that people can describe all the places that a particular song can be found (across singles, albums, and compilations); based on that it seemed natural that chapters which are published individually (whether in issues or inconsistent collections) would be described by Works, but if there’s a different approach that would still communicate the same information, I’d be happy to learn about it!