Schumpeter, J. A., & Opie, R. (1961). The theory of economic development: An inquiry into profits, capital, credit, interest and the business cycle. Harvard University Press.
Цитирование в стиле Чикаго (17-е изд.)Schumpeter, Joseph Alois, и Redvers Opie. The Theory of Economic Development: An Inquiry into Profits, Capital, Credit, Interest and the Business Cycle. Cambridge, Mass: Harvard University Press, 1961.
Цитирование MLA (9-е изд.)Schumpeter, Joseph Alois, и Redvers Opie. The Theory of Economic Development: An Inquiry into Profits, Capital, Credit, Interest and the Business Cycle. Harvard University Press, 1961.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.