APA (7th ed.) Citation

Campbell, K., Cooper, S., Fahy, S., Bowker, K., Leonardi-Bee, J., McEwen, A., . . . Coleman, T. (2017). ‘Opt-out’ referrals after identifying pregnant smokers using exhaled air carbon monoxide: Impact on engagement with smoking cessation support. BMJ Publishing Group.

Chicago Style (17th ed.) Citation

Campbell, Katarzyna, Sue Cooper, Samantha Fahy, Katharine Bowker, Jo Leonardi-Bee, Andy McEwen, Rachel Whitemore, and Tim Coleman. ‘Opt-out’ Referrals After Identifying Pregnant Smokers Using Exhaled Air Carbon Monoxide: Impact on Engagement with Smoking Cessation Support. BMJ Publishing Group, 2017.

MLA (9th ed.) Citation

Campbell, Katarzyna, et al. ‘Opt-out’ Referrals After Identifying Pregnant Smokers Using Exhaled Air Carbon Monoxide: Impact on Engagement with Smoking Cessation Support. BMJ Publishing Group, 2017.