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Welcome to ISBN | ISSN | ISMN National Centre Of Sri Lanka


          The International Standard Book Numbers are assigned to text-based monographic publications (i.e. one-off publications rather than journals, newspapers, or other types of serials).


          International Standard Serial Number is an 8-digit code used to identify newspapers, journals, magazines and periodicals of all kinds and on all media–print and electronic.


          The International Standard Music Number (ISMN) identifies all printed sheet music publications, whether available for sale, hire, or gratis.