(2015). Necessary & proportionate: International principles on the application of human rights to communications surveillance with background and supporting international legal analysis. Electronic Frontier Foundation.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Necessary & Proportionate: International Principles on the Application of Human Rights to Communications Surveillance with Background and Supporting International Legal Analysis. United States of America: Electronic Frontier Foundation, 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Necessary & Proportionate: International Principles on the Application of Human Rights to Communications Surveillance with Background and Supporting International Legal Analysis. Electronic Frontier Foundation, 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.