1Nonconformisto
Why are the Main Classes of the Library of Congress Classification no longer providing useful data? I clicked on Category D, for example, and the message was that ""D" is an invalid Library of Congress Classification."
2bnielsen
>1 Nonconformisto: That looks like a bug to me.
3Nevov
There's a bug report from a few days ago at: https://www.librarything.com/topic/377492

