Combine books showing up differently

[Mae]

How to combine two books which should be one
https://www.goodreads.com/book/show/3...
https://www.goodreads.com/book/show/1...

[lethe]

To combine, the primary author should be the same on all four editions, otherwise they won't show up on the combine page.

https://www.goodreads.com/help/show/2...

Only if there is no actual (corporate) author listed, should the publisher be mentioned in the author field, otherwise they belong in the publisher field. Co-publishers should not be added as authors.