Bertrand, M., Luttmer, E. F. P., & Mullainathan, S. (1998). Network effects and welfare cultures. National Bureau of Economic Research.
Chicago Style (17. basım) AtıfBertrand, Marianne, Erzo F. P. Luttmer, ve Sendhil Mullainathan. Network Effects and Welfare Cultures. Cambridge: National Bureau of Economic Research, 1998.
MLA (9th ed.) AtıfBertrand, Marianne, et al. Network Effects and Welfare Cultures. National Bureau of Economic Research, 1998.
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