Choose an item you will use to support your research.
List the title of the item, then list the call number. The call number, which is the address of the item, is the alphanumeric code listed at the top of the record.
Every item in the Library collection has a distinct call number.
Books have a Library of Congress call number. Each component of the call number represents coding for the book's subject matter, author, and title.
The Library's collections of government documents and audio-visual items have their own classification systems.
