Goodreads Librarians Group discussion

Laura WarbyI currently have one edition of each of my five published books. It's an eBook version, which is available on Amazon, and on Smashwords. Via Smashwords, it's available from Barnes and Noble, Kobo, etc.
It's exactly the same version of the books on each website.

Could someone tell me why there are several editions of each of my works visible on my profile? I've had new covers for two of my books recently, so I understand that, but some of my works have a Smashwords edition, an eBook edition and a Kindle edition.
As they're all exactly the same, is there a way to amalgamate each of the vesions, until there's only one? Preferably 'eBook version' Or two, for the books with new covers? (Both eBook, but one with the old cover, one with the new?)

Thanks a lot.

I deleted one edition of Cats & Dogs that had no information to speak of, but all the others are either legitimate ISBN/ASIN or are alternate covers of same. Goodreads policy is to keep all editions that may have been shelved by readers.

Ah, right ok. Thanks a lot.