Citação norma APA

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.

Citação norma Chicago

Blondal, Thorsteinn, Larus Jon Gudmundsson, Ingileif Olafsdottir, Gunnar Gustavsson, and Ake Westin. "Nicotine Nasal Spray With Nicotine Patch for Smoking Cessation: Randomised Trial With Six Year Follow Up." BMJ 1999.

Citação norma MLA

Blondal, Thorsteinn, et al. "Nicotine Nasal Spray With Nicotine Patch for Smoking Cessation: Randomised Trial With Six Year Follow Up." BMJ 1999.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.