https://www.goodreads.com/book/show/2... (edition with no ISBN, the "Tercera Fundación" thing is a watermark from a store.) https://www.goodreads.com/book/show/6... (duplicate with truncated ISBN) https://www.goodreads.com/book/show/5... (Titivillus is a group who shares books/scans illegally, a name related to the website Epublibre - seeing how this edition has the same cover than the one by DeBolsillo but with the publisher's name conveniently removed, I'd say it's those people and not an unlikely bona fide publisher also named Titivillus).
https://www.goodreads.com/book/show/2... (edition with no ISBN, the "Tercera Fundación" thing is a watermark from a store.)
https://www.goodreads.com/book/show/6... (duplicate with truncated ISBN)
https://www.goodreads.com/book/show/5... (Titivillus is a group who shares books/scans illegally, a name related to the website Epublibre - seeing how this edition has the same cover than the one by DeBolsillo but with the publisher's name conveniently removed, I'd say it's those people and not an unlikely bona fide publisher also named Titivillus).
Then recombine with https://www.goodreads.com/work/editio...
Thanks!!