COPD: Journal of Chronic Obstructive Pulmonary Disease. Cambridge University Press.
Cita Chicago (17th ed.)COPD: Journal of Chronic Obstructive Pulmonary Disease. Cambridge University Press.
Cita MLA (8th ed.)COPD: Journal of Chronic Obstructive Pulmonary Disease. Cambridge University Press.
Atenció: Aquestes cites poden no estar 100% correctes.