APA (7th ed.) Citation

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.

Chicago Style (17th ed.) Citation

Schumpeter, Joseph Alois, and Redvers Opie. The Theory of Economic Development: An Inquiry into Profits, Capital, Credit, Interest and the Business Cycle. Cambridge, Mass: Harvard University Press, 1961.

MLA (9th ed.) Citation

Schumpeter, Joseph Alois, and Redvers Opie. The Theory of Economic Development: An Inquiry into Profits, Capital, Credit, Interest and the Business Cycle. Harvard University Press, 1961.