Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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