Did you know the L.O.C. has an Error Reporting Form? Well, catalogablog did. You can usethis form to report catalog and authority record errors found in the Library of Congress Online Catalog.
"Do everybody a favor and use it. The sooner they correct the errors the fewer catalogs contain the error, or have to correct it. I just reported the wrong call number in the record for Sun / by Stephen M. Tomecek ; illustrated by Carla Golembe. They have QE something, a geology number. So don't just complain, report it and help all of us to have better catalogs. "