Goodreads Librarians Group discussion

Year: 1972

format: Mass Market Paperback

There may be two different editions for this ISBN. Worldcat shows for
9780140430752
https://www.worldcat.org/title/old-cu...
and
https://www.worldcat.org/title/old-cu...
Do you think that could be the case?

Absolutely, but since they have the same ISBN Goodreads seems to have the policy that they are the same edition and will simply treat them av alternate cover editions provided they have differing front covers, which they will have since these two are issued in different Penguin series.

I just wanted to make sure. I will come back to it.

Wanted to check if this is the edition you're referring to, just in case:
https://www.goodreads.com/book/show/1...

No, the correct cover is that of the topic edition.

To make the issue clearer I will quote from the colophon:
_________
Published in the Penguin New English Library 1972
Reprinted 1974, 1975, 1976, 1977, 1978, 1980, 1983, 1984
Reprinted in Penguin Classics 1985, 1986, 1987
-----------

So the topic edition and the edition you linked in message #5 are alternate cover editions.

That's what I thought after looking at it some more. Thank you for confirming. done

And consequently, they should be marked out as ACEs.

I have marked them.

Thank you!