Library of Congress subject headings. Supplementary vocabularies : free-floating subdivisions, genre/form headings, children's subjec t headings - Library of Congress. Policy and Standards Division (Washington, D.C. : Library of Congress, Cataloging Distribution S ervice, 2009)
Keywords: Library of Congress. -- Policy and Standards Division -- Periodicals .; Subject headings, Library of Congress; Subject heading subdivisions -- Periodicals; Form headings -- Periodicals; Subject headings