APA (7th ed.) Citation

Schumpeter, J. A., & Opie, R. (1934). The theory of economic development: An inquiry into profits, capital, credit, interest, and the business cycle. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Schumpeter, Joseph A., and Redvers Opie. The Theory of Economic Development: An Inquiry into Profits, Capital, Credit, Interest, and the Business Cycle. London: Oxford Univ. Press, 1934.

MLA (9th ed.) Citation

Schumpeter, Joseph A., and Redvers Opie. The Theory of Economic Development: An Inquiry into Profits, Capital, Credit, Interest, and the Business Cycle. Oxford Univ. Press, 1934.