ebrary, Inc, Barnes, P. J., Hansel, T. T., & Kon, O. M. (2008). Chronic obstructive pulmonary disease: (COPD). Oxford University Press.
芝加哥风格引文ebrary, Inc, Peter J. Barnes, T. T. Hansel, 与 Onn Min Kon. Chronic Obstructive Pulmonary Disease: (COPD). Oxford ; New York: Oxford University Press, 2008.
MLA引文ebrary, Inc, et al. Chronic Obstructive Pulmonary Disease: (COPD). Oxford University Press, 2008.
警告：这些引文格式不一定是100％准确.