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 Group.

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 Group, 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 Group, 1999.

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