ACE or edition correction? Unsure how to handle

[Dobby]

I'm adding new purchases to my shelves and have a copy of this book, ISBN13: 9780440215110. The Goodreads edition Florida Straits indicates this is a hardcover with these stats:
Publisher: Dell, June 1 1992, 271 pages

However, my copy is a mass-market paperback, published by Dell July 1993, 365 pages. ISBN13: 9780440215110. WorldCat agrees:
http://www.worldcat.org/title/florida...
As does Amazon, fwiw:
http://www.amazon.com/Florida-Straits...
The Amazon cover image is the same as the book I have in hand. That might be the same cover image on this GR edition; hard to tell because of blurriness.

I was going to create an ACE, but I found this hardcover edition
Florida Straits with these stats:
ISBN-13: 9780671749330; hardcover, Simon & Schuster, pub June 1 1992, 271 pages.
WorldCat agrees: http://www.worldcat.org/title/florida...
as does Amazon: http://www.amazon.com/Florida-Straits...

So now I wonder: is the Dell edition actually the paperback mislabeled as a hardcover? The pub date and page count match the Simon & Schuster edition. WorldCat shows the Dell edition to be a paperback, not a hardcover.

I need advice - should I add my Dell paperback edition as an ACE? Or should the existing record showing a Dell hardcover be changed? (And if the latter, can we replace the blurry image with the clear image shown on Amazon?)

[rivka, Former Moderator]

Looking at the logs for that edition, it looks like some (probably incorrect) changes were made to the record, which I have reverted.

As far as the cover, the one on Amazon is different colors (shades), probably from a different printing. You can add an ACE with the Amazon cover, if you like.

[Dobby]

Thanks, Rivka!

[lethe]

Perhaps superfluously, but AFAIK Dell is strictly (mass-market) paperbacks.

[Dobby]

lethe wrote: "Perhaps superfluously, but AFAIK Dell is strictly (mass-market) paperbacks."

That's what I thought, Lethe. That was my first clue to dig deeper into the issue.