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About the only location scheme I can think of that works across everything ... is the Book-Chapter-Verse structure of the Bible. And that only works because those markers are "hard coded" into the text. It works well in the Bible, but would suck in novels. Technical textbooks often have something similar with Chapter-Section-Paragraph markers. But again, those are hard coded into the text. And usually indexed as well.
Book clubs have never been able to solve the problem, even back when there was no such thing as an eBook. You had different editions, different publishers, large print versions, etc. eBooks did not add a solution, they just expanded the problem.
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