Library of Congress. Cataloging Policy and Support Office & Goldberg, J. E. (1993). Classification. Library of Congress.
Lua i Stíl Chicago (17ú heag.)Library of Congress. Cataloging Policy and Support Office agus Jolande E. Goldberg. Classification. Washington: Library of Congress, 1993.
Lua MLA (8ú heag.)Library of Congress. Cataloging Policy and Support Office agus Jolande E. Goldberg. Classification. Library of Congress, 1993.
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