This field lists additional, related subject headings that you might want to consider. This field contains suggested Dewey classification numbers for books with the heading. LC Heading . This contains related Library of Congress Subject Headings. Source of heading .
Headings come from various sources.
LCSH means the heading is from the Library of Congress Subject Headings . ERIC indicates the heading is from the Thesaurus of ERIC Descriptors . Local means the heading was created by the catalogers at the Gallaudet University Library.