Adding edition of Suzanne Collins's Mockingjay

[Florian]

Dear fellow librarians,

I've got a question regarding to the book Mockingjay by Suzanne Collins. I'm reading it at the moment and while adding it, I discovered that the edition I am reading isn't in the GR database yet. It concerns an edition of the book from a Hunger Games series boxset (ISBN 9781407136547). In the copyright info in the book itself (there's no ISBN on the back), it's ISBN is said to be 9781407109374. That ISBN refers to an edition published by Scholastic Australia, 458 pages, while the book I'm reading has been published by Scholastic UK and holds 441 pages. So, coming to the point, is it necessary to add a new edition for this? And if so, then as well for #1 Hunger Games and #2 Catching Fire?

Thanks in advance.

[Scott]

Unless the covers are different, I wouldn't bother making a new edition, but that's just me. You certainly can if you like.