Separating abridgements from original works?

[Stephen]

Not long ago I read

Little Men

and I see now that it's combined with
Little Men and many other versions, some abridged, some not.

I understand that ADAPTATIONS should not be combined with original works but where should the line be drawn in this case?

Should all the abridged versions EACH have their own entry with only the unabridged versions combined?

I'm a bit unclear.

[Cait]

Abridgments are combined with the unabridged editions. It's only adaptations which are separated.