APA-referens (7:e uppl.)

Aveyard, P., Lawrence, T., Croghan, E., Evans, O., & Cheng, K. (2005). Is advice to stop smoking from a midwife stressful for pregnant women who smoke? Data from a randomized controlled trial.

Chicago-referens (17:e uppl.)

Aveyard, P., T. Lawrence, E. Croghan, O. Evans, och K. Cheng. Is Advice to Stop Smoking from a Midwife Stressful for Pregnant Women Who Smoke? Data from a Randomized Controlled Trial. 2005.

MLA-referens (9:e uppl.)

Aveyard, P., et al. Is Advice to Stop Smoking from a Midwife Stressful for Pregnant Women Who Smoke? Data from a Randomized Controlled Trial. 2005.