APA (7th ed.) Citation

ebrary, Inc, Barnes, P. J., Hansel, T. T., & Kon, O. M. (2008). Chronic obstructive pulmonary disease: (COPD). Oxford University Press.

Chicago Style (17th ed.) Citation

ebrary, Inc, Peter J. Barnes, T. T. Hansel, and Onn Min Kon. Chronic Obstructive Pulmonary Disease: (COPD). Oxford ; New York: Oxford University Press, 2008.

MLA (9th ed.) Citation

ebrary, Inc, et al. Chronic Obstructive Pulmonary Disease: (COPD). Oxford University Press, 2008.