[foghat]

^ really? How are you realistically going to take a hard copy of a book and find the citation at 37,4 percent?

This becomes even more difficult if there is additional material in the ebook vs. the hard copy or vice versa. Granted, if using an academic type book, there is probably less likelihood of having preview chapters and such.

I agree locations aren't very good if you don't have the ebook version - but really, even if the citation was from a hard copy, you likely wouldn't have the hard copy either. And if you did, who is to say you have the same hard copy version as the OP? In which case hard copy page numbers (which I assume you think are acceptable) don't get you there either.

Maybe a combination of chapter number, a percentage, and a location number? Though realistically, without having the kindle version, finding the actual citation is going to be quite cumbersome.