Walling, W. E. (1916). The Socialism of to-day: A source-book of the present position and recent development of the socialist and labor parties in all countries, consisting mainly of original documents. H. Holt and Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Walling, William English. The Socialism of To-day: A Source-book of the Present Position and Recent Development of the Socialist and Labor Parties in All Countries, Consisting Mainly of Original Documents. New York: H. Holt and Company, 1916.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Walling, William English. The Socialism of To-day: A Source-book of the Present Position and Recent Development of the Socialist and Labor Parties in All Countries, Consisting Mainly of Original Documents. H. Holt and Company, 1916.
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