Not sure how to indicate 2 editions of same book

[Sue]

I have two editions of the same book: The Shetland Sheepdog by Beryl and Joan Herbert. The first was published in England in 1961 (no ISBN) http://www.goodreads.com/book/show/10... the second is a US republication in 1976 http://www.goodreads.com/book/show/46... . The US one was already listed, but with 1976 as the original publication date. I put in the original British edition (no ISBN) and did a little metadata editing on the newer one. They should be combined as different editions of the same book, each with two authors. I need help indicating that these are different editions of the same book.

[Carolyn]

OK, I standardized the author name to Beryl M. Herbert, under which there was another edition of the book out there. I added the additional author of Joan Herbert, put a librarian's note on the pre-ISBN one, then I combined them. Let me know if you find anything else needing to be done on them. = )