(1959). Cataloging rules of the American Library Association and the Library of Congress: Additions and changes, 1949-1958. Washington: Library of Congress.
Παραπομπή Chicago StyleCataloging Rules of the American Library Association and the Library of Congress: Additions and Changes, 1949-1958. Washington: Library of Congress, 1959.
Παραπομπή MLACataloging Rules of the American Library Association and the Library of Congress: Additions and Changes, 1949-1958. Washington: Library of Congress, 1959.
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