This is the range assigned to your article from the publisher, and it's the a single you can use to reference your write-up within the library catalogues. ISSN code (also called as "ISSN framework" or "ISSN syntax") might be expressed as follows: NNNN-NNNC Title your collection: Title need to be https://www.directivepublications.org/journal-of-applied-nanoscience/