Godlee, F., Malone, R., Timmis, A., Otto, C., Bush, A., Pavord, I., & Groves, T. (2013). Journal policy on research funded by the tobacco industry.
Chicago Style aipamenaGodlee, F., R. Malone, A. Timmis, C. Otto, A. Bush, I. Pavord, and T. Groves. Journal Policy on Research Funded by the Tobacco Industry. 2013.
MLA aipamenaGodlee, F., et al. Journal Policy on Research Funded by the Tobacco Industry. 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.