ISO/IEC 8348:1996 - Information technology -- Open Systems Interconnection -- Network Service Definition - 2nd edition [ZIP File]. www.iso.ch/iso/en/ittf/PubliclyAvailableStandards/s027728e.zip
ISO/IEC 8348:1996/ Amd.1:1998 - Amendment 1: Addition of the Internet protocol address format identifier - 1st edition [ZIP File]. www.iso.ch/iso/en/ittf/PubliclyAvailableStandards/c030507e.zip
