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Usage: {{UPC|UPC_number|Magazine_title+date}} includes aname
UPC-A 12-digit Universal Product Codeᵂ
- The first six to nine digits are the "Company Prefix"
- The next set of digits is called the "product numbers"
- The twelfth character is called the "check digit"
12: 977 - ISSN
e.g. 782330008888 782330=eMG 00888=Zoom magazine 8=check digit