1.6 - California Local Sales Taxes. California does not allow local jurisdictions like cities or counties to collect a local sales tax. The California state sales tax of 7.5% is applicable statewide. You can view the sales tax rates for various cities in California here.
When the barcoding system was set up for serials, it was realised that the ISSN as a unique identifying number for the title could be used as part of the barcode to identify the serial. The ISSN is therefore the title identifier in the barcode. Magazine barcodes are represented in EAN format with a 2 digit add-on code.
Similar to a bar code for a physical object, a Digital Object Identifier (DOI) is a unique alphanumeric string assigned to a digital object, such as an electronic journal, article, report, or thesis.