Halkjelsvik, T., & Scheffels, J. (2019). Standardised snus packaging reduces brand differentiation: A web-based between-subject experiment. BMC Public Health.
Chicago-tyylinen lähdeviittausHalkjelsvik, Torleif, ja Janne Scheffels. "Standardised Snus Packaging Reduces Brand Differentiation: A Web-based Between-subject Experiment." BMC Public Health 2019.
MLA-viiteHalkjelsvik, Torleif, ja Janne Scheffels. "Standardised Snus Packaging Reduces Brand Differentiation: A Web-based Between-subject Experiment." BMC Public Health 2019.
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