Berndt, E. R., Pindyck, R. S., & Azoulay, P. (2000). Consumption externalities and diffusion in pharmaceutical markets: Antiulcer drugs. National Bureau of Economic Research.
Citace podle Chicago (17th ed.)Berndt, Ernst R., Robert S. Pindyck, a Pierre Azoulay. Consumption Externalities and Diffusion in Pharmaceutical Markets: Antiulcer Drugs. Cambridge: National Bureau of Economic Research, 2000.
Citace podle MLA (9th ed.)Berndt, Ernst R., et al. Consumption Externalities and Diffusion in Pharmaceutical Markets: Antiulcer Drugs. National Bureau of Economic Research, 2000.
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