If you are stuck with someone else's structure of the book, it is, as Hitch said, laborious and kind of clunky.
If it is one's own book, it might be time to put on one's thinking cap and see if all the back references are really necessary or this apparently very important material can be developed into a chapter of its own.
If the book is to be used in an academic environment, this latter approach is probably not workable.
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