To delete or correct and combine?

[Iris]

I found this book: Tail of the Moon, Volume 9 and saw that it had the wrong author, fixed it and planned to find a cover for it by looking for the edition through ISBN. I found a cover at World Cat , but there was the same wrong info about the author and also the publisher (haven't fixed that one yet ;) ). So I checked on other sites while using the ISBN number, but it's the same everywhere (while the info on the cover is correct.)

How do i solve this? Do i delete this book or correct everything?

[Sandra]

If you have the book or know it, you correct it.