Smart, W. (1923). The distribution of income: Being a study of what the national wealth is and how it is distributed according to economic worth (3rd ed.). Macmillan.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Smart, William. The Distribution of Income: Being a Study of What the National Wealth Is and How It Is Distributed According to Economic Worth. 3rd ed. London: Macmillan, 1923.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Smart, William. The Distribution of Income: Being a Study of What the National Wealth Is and How It Is Distributed According to Economic Worth. 3rd ed. Macmillan, 1923.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.