توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Beckerman, W. (1979). Poverty and the impact of income maintenance programmes in four developed countries: Case studies of Australia, Belgium, Norway, and Great Britain. International Labour Office.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Beckerman, Wilfred. Poverty and the Impact of Income Maintenance Programmes in Four Developed Countries: Case Studies of Australia, Belgium, Norway, and Great Britain. Geneva: International Labour Office, 1979.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Beckerman, Wilfred. Poverty and the Impact of Income Maintenance Programmes in Four Developed Countries: Case Studies of Australia, Belgium, Norway, and Great Britain. International Labour Office, 1979.