Lua APA (7ú heag.)

North, D. C. (1992). Transaction costs, institutions, and economic performance. International Center for Economic Growth.

Lua i Stíl Chicago (17ú heag.)

North, Douglas Cecil. Transaction Costs, Institutions, and Economic Performance. San Fransisco, Calif: International Center for Economic Growth, 1992.

Lua MLA (9ú heag.)

North, Douglas Cecil. Transaction Costs, Institutions, and Economic Performance. International Center for Economic Growth, 1992.

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