Text pasted from web pages, or imported or scanned, is often formatted like junk. Web pages, though, may contain styles, maybe.

If I were the one constructing this document, I would have formatted the names using styles.

Try clicking on a book name or author and press Shift-F1 to display styles. At the bottom of the pane click on the option to show the style source. If there is a distinctive (character) style for these items, it will show at the top of the pane. If there is such a style, you can search for it and the Find will select the next set of text formatted using that style. You can record a macro to copy that text and find the next.