Adding new version of book with new ISBN

[[deleted user]]

I found a book on the internet, and looked it up on Goodreads. I noticed it didn't have a cover, so I added the cover from the author's website. Then I realized she'd very recently released a new version of the book, via Createspace instead of her old publisher. I added the new version, with the new ISBN and all the details from Createspace, then I combined it with the old version.

http://www.goodreads.com/book/show/17...

My question - the new version has a lot more pages than the old version. It has a similar description and the same name, though. Is it wrong to combine them, in case she rewrote the book? I don't know that she did - it just has more pages, which could easily be different formatting. The description doesn't say it's been rewritten. Should I have combined them, or not?

Thanks, Mona

[vicki_girl]

Unless there is reason to believe that they are significantly different, I would combine them.

[[deleted user]]

Thanks. I'm assuming they're the same. I had a look at the sample on Amazon and they both start exactly the same way. I don't have any proof they are different, so combining them was most likely okay :)