APA-referens (7:e uppl.)

Carpenter, M., Hughes, J., Solomon, L., & Lancaster, T. (2005). Smoking reduction with nicotine replacement and motivational advice reduced smoking in people unmotivated to quit.

Chicago-referens (17:e uppl.)

Carpenter, M., JR Hughes, L. Solomon, och T. Lancaster. Smoking Reduction with Nicotine Replacement and Motivational Advice Reduced Smoking in People Unmotivated to Quit. 2005.

MLA-referens (9:e uppl.)

Carpenter, M., et al. Smoking Reduction with Nicotine Replacement and Motivational Advice Reduced Smoking in People Unmotivated to Quit. 2005.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.