The author asks about books that include examples from multiple languages. On of the best was "The Elements of Programming Style", which used examples of failure to follwow their principles from other books. Most were Fortran and PL/I, which had high market share at the time it was published. If my copy was handy, I'd be able to name other languages it used (probably C, given the authors, but C wasn't yet in wide use.)
What's with disqus.com? As presented to me, the comments page had three comments but no visible link to make a comment, and the "Help" link sent me to a 404 page, whose help link sent me to the same 404 page.