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Date: 2016-08-17 10:00:26Environmental economics Business ethics Auditing G4 NBCUniversal Global Reporting Initiative Corporate governance Materiality Sustainability Corporate social responsibility AT&T Audit | Learn more about our Citizenship & Sustainability initiatives at General Standard Disclosures Standard DisclosureAdd to Reading ListSource URL: about.att.comDownload Document from Source WebsiteFile Size: 759,52 KBShare Document on Facebook |