A publication number issued by the Library of Congress that identifies a specific periodical (such as a Periodicals publication).
A unique identification number assigned to a serial through the ISSN Network. Each ISSN has eight characters. The eighth character is a check character that may be a number or the letter . A hyphen follows the fourth character.
(ISSN) - A distinctive number assigned to each serial title. See www.issn.org
An ISSN, or International Standard Serial Number, is a unique eight-digit number used to identify a print or electronic periodical publication. The ISSN system was adopted as international standard ISO 3297 in 1975. The TC 46/SC 9 is responsible for the standard.