[answered] WorldCat and different publication-dates

[Karin]

I want to correct this bookinformation and cover.

https://www.goodreads.com/book/show/1...

With this ISBN I already find 3 different covers on Abebooks.

I also have no luck with the publication date, on WorldCat the ISBN gives 3 different publication dates and 2 languages.

Language is the easy part, I choose German.

But what with the pub-date and cover? I leave it like that?

[Renske]

With multiple covers for the same ISBN it can be difficult to find the correct data for each, especially the specific publication dates for each version of the cover. So sometimes you have indeed to leave it as it is without information.
If a book is still for sale, finding the newest cover is generally the easiest, as it is nearly always the one on the publisher site or Amazon.

If an accepted source has for this ISBN a better image for the version currently listed, you can replace it, but it shouldn't be changed to a different cover. (Those should get their own edition)