United States. Library of Congress. (1994). Library of Congress classification. H. Social sciences. Library of Congress.
Cita Chicago (17th ed.)United States. Library of Congress. Library of Congress Classification. H. Social Sciences. Washington, D.C: Library of Congress, 1994.
Cita MLA (9th ed.)United States. Library of Congress. Library of Congress Classification. H. Social Sciences. Library of Congress, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.