Nielsen, L. (2011). Classifications of Countries Basedon their Level of Development: How it is Done and How it Could Be Done. International Monetary Fund.
Цитирование в стиле Чикаго (17-е изд.)Nielsen, Lynge. Classifications of Countries Basedon Their Level of Development: How It Is Done and How It Could Be Done. Washington, D.C.: International Monetary Fund, 2011.
Цитирование MLA (8-е изд.)Nielsen, Lynge. Classifications of Countries Basedon Their Level of Development: How It Is Done and How It Could Be Done. International Monetary Fund, 2011.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.