Cita APA (7th ed.)

Silagy, C., Lancaster, T., Stead, L., Mant, D., & Fowler, G. (2002). Nicotine replacement therapy for smoking cessation.

Cita Chicago (17th ed.)

Silagy, C., T. Lancaster, L. Stead, D. Mant, i G. Fowler. Nicotine Replacement Therapy for Smoking Cessation. 2002.

Cita MLA (9th ed.)

Silagy, C., et al. Nicotine Replacement Therapy for Smoking Cessation. 2002.