Help Merging Book

[A.B.]

I looked up how to merge existing editions of my book (there are currently three) and the answer is murky:

1. Separate the duplicate and its actual edition from any other editions of that book.
2. Combine them just with each other.
3. Click 'delete this book' at the bottom of the edit book page. Note that this only works for books shelved fewer than five times. It will merge with its actual edition because this is the most popular (only) other edition available in that combination.
4. Re-combine the actual edition with the other editions of the book.

One edition was added by a friend, another was added by me when I "claimed" the book (it's the one with an actual image) and the third, I have no idea where it came from. How do I combine them all into the edition I added?

[Abcdarian]

I set the two copies without ASIN to merge into the other one and added the cover from Amazon.

[A.B.]

Thank you! I appreciate your help and quick response.

[Abcdarian]

You're welcome. :-)