U.S. Library of Congress

• U.S. Library of Congress. Information Bulletin Ask for more information Publisher: U.S. Library of Congress

• Cataloging Service Bulletin Ask for more information Publisher: U.S. Library of Congress

• Subject Headings Manual Ask for more information Publisher: U.S. Library of Congress

• U.S. Library of Congress. Subject Headings Ask for more information Publisher: U.S. Library of Congress

• Free-floating Subdivisions Ask for more information Publisher: U.S. Library of Congress

• Cataloger's Desktop CD Ask for more information Publisher: U.S. Library of Congress

• Classification Plus CD Ask for more information Publisher: U.S. Library of Congress

• Subject Headings Manual Update Ask for more information Publisher: U.S. Library of Congress