New serial titles : A union list of serials commencing publication after December 31,1949. 1950-1970 Cumulative 2026-02-15T21:16:46+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... (Library of Congress ; R.R. Bowker Company, 1973)