APA (7th ed.) Citation

Eklund, B., Nilsson, S., Hedman, L., & Lindberg, I. (2012). Why do smokers diagnosed with COPD not quit smoking? - a qualitative study. BioMed Central Ltd.

Chicago Style (17th ed.) Citation

Eklund, Britt-Marie, Siv Nilsson, Linnea Hedman, and Inger Lindberg. Why Do Smokers Diagnosed with COPD Not Quit Smoking? - a Qualitative Study. BioMed Central Ltd, 2012.

MLA (9th ed.) Citation

Eklund, Britt-Marie, et al. Why Do Smokers Diagnosed with COPD Not Quit Smoking? - a Qualitative Study. BioMed Central Ltd, 2012.