British Socialist Party. (1918). The call: An Organ of International Socialism. London: Executive Committee of the British Socialist Party.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)British Socialist Party. The Call: An Organ of International Socialism. London: Executive Committee of the British Socialist Party, 1918.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)British Socialist Party. The Call: An Organ of International Socialism. London: Executive Committee of the British Socialist Party, 1918.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.