Kravis, I. B. (1975). A system of international comparisons of gross product and purchasing power. Johns Hopins University Press.
Цитирование в стиле Чикаго (17-е изд.)Kravis, Irving B. A System of International Comparisons of Gross Product and Purchasing Power. Johns Hopins University Press, 1975.
Цитирование MLA (9-е изд.)Kravis, Irving B. A System of International Comparisons of Gross Product and Purchasing Power. Johns Hopins University Press, 1975.
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