Library of Congress. Subject Cataloging Division. (1982). Classification. Class P-PZ, language and literature tables. The Library For sale by the Cataloging Distribution Service, Library of Congress.
Lua i Stíl Chicago (17ú heag.)Library of Congress. Subject Cataloging Division. Classification. Class P-PZ, Language and Literature Tables. Washington: The Library For sale by the Cataloging Distribution Service, Library of Congress, 1982.
Lua MLA (9ú heag.)Library of Congress. Subject Cataloging Division. Classification. Class P-PZ, Language and Literature Tables. The Library For sale by the Cataloging Distribution Service, Library of Congress, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.