Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Blondal, T., Gudmundsson, L. J., Olafsdottir, I., Gustavsson, G., & Westin, A. (1999). Nicotine nasal spray with nicotine patch for smoking cessation: Randomised trial with six year follow up. BMJ.
Chicago Style (17th ed.) Zitazioa
Blondal, Thorsteinn, Larus Jon Gudmundsson, Ingileif Olafsdottir, Gunnar Gustavsson, eta Ake Westin. "Nicotine Nasal Spray with Nicotine Patch for Smoking Cessation: Randomised Trial with Six Year Follow Up." BMJ 1999.
MLA (9th ed.) Zitazioa
Blondal, Thorsteinn, et al. "Nicotine Nasal Spray with Nicotine Patch for Smoking Cessation: Randomised Trial with Six Year Follow Up." BMJ, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.