Authority Control. Mary Marchio. What is Authority Control?. Formulation and recording of authorized heading forms in a library catalog Headings must be consistent Twain, Mark not Clemens, Samuel Headings must be unique Madonna vs Mary, Blessed Virgin, Saint.
Twain, Mark not Clemens, Samuel
Madonna vs Mary, Blessed Virgin, Saint
how do you export/import large numbers of records?
is a test database available?
at Library of Congress website