Limit your search to English records:

Look for Library of Congress or Program for
Cooperative Cataloging logos in the search results:  


When looking at individual records, look for records
that many libraries are using:

Instead of just a few:

In the MARC Display, look for records created
and reviewed by Library of Congress (DLC). The first “DLC” means LC created the
second “DLC” means that another LC cataloger reviewed the record: