Grossman, G. M., & Helpman, E. (1999). Incomplete contracts and industrial organization. National Bureau of Economic Research.
Chicago Style (17. basım) AtıfGrossman, Gene M., ve Elhanan Helpman. Incomplete Contracts and Industrial Organization. Cambridge: National Bureau of Economic Research, 1999.
MLA (9th ed.) AtıfGrossman, Gene M., ve Elhanan Helpman. Incomplete Contracts and Industrial Organization. National Bureau of Economic Research, 1999.
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