United States. Library of Congress. Processing Services. (1980). Library of Congress filing rules. Library of Congress.
Citação do estilo Chicago (17ª ed.)United States. Library of Congress. Processing Services. Library of Congress Filing Rules. Washington, D.C: Library of Congress, 1980.
Citação MLA (9ª ed.)United States. Library of Congress. Processing Services. Library of Congress Filing Rules. Library of Congress, 1980.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.