Bliss, W. D. P. (1898). Encyclopedia of social reform: Including political economy, political science, sociology and statistics. Funk & Wagnalls company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bliss, William Dwight Porter. Encyclopedia of Social Reform: Including Political Economy, Political Science, Sociology and Statistics. New York and London: Funk & Wagnalls company, 1898.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bliss, William Dwight Porter. Encyclopedia of Social Reform: Including Political Economy, Political Science, Sociology and Statistics. Funk & Wagnalls company, 1898.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.