Cita APA

Ohar, J. A., Sadeghnejad, A., Meyers, D. A., Donohue, J. F., & Bleecker, E. R. (2010). Do Symptoms Predict COPD in Smokers? American College of Chest Physicians.

Citación estilo Chicago

Ohar, Jill A., Alireza Sadeghnejad, Deborah A. Meyers, James F. Donohue, y Eugene R. Bleecker. Do Symptoms Predict COPD in Smokers? American College of Chest Physicians, 2010.

Cita MLA

Ohar, Jill A., et al. Do Symptoms Predict COPD in Smokers? American College of Chest Physicians, 2010.