Pratt, J. W., & Zeckhauser, R. J. (1985). Principles and agents: The structure of business. Harvard Business School Press.
Lua i Stíl Chicago (17ú heag.)Pratt, John W., agus Richard J. Zeckhauser. Principles and Agents: The Structure of Business. Boston: Harvard Business School Press, 1985.
Lua MLA (9ú heag.)Pratt, John W., agus Richard J. Zeckhauser. Principles and Agents: The Structure of Business. Harvard Business School Press, 1985.
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