Libecap, G. D., & Smith, J. L. (1999). The self-enforcing provisions of oil and gas unit operating agreements: Theory and evidence. National Bureau of Economic Research.
Chicago-referens (17:e uppl.)Libecap, Gary D., och James L. Smith. The Self-enforcing Provisions of Oil and Gas Unit Operating Agreements: Theory and Evidence. Cambridge: National Bureau of Economic Research, 1999.
MLA-referens (9:e uppl.)Libecap, Gary D., och James L. Smith. The Self-enforcing Provisions of Oil and Gas Unit Operating Agreements: Theory and Evidence. National Bureau of Economic Research, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.