Birring, S., Parker, D., McKenna, S., Hargadon, B., Brightling, C., Pavord, I., & Bradding, P. (2005). Sputum eosinophilia in idiopathic pulmonary fibrosis.
芝加哥风格引文Birring, S., D. Parker, S. McKenna, B. Hargadon, C. Brightling, I. Pavord, 与 P. Bradding. Sputum Eosinophilia in Idiopathic Pulmonary Fibrosis. 2005.
MLA引文Birring, S., et al. Sputum Eosinophilia in Idiopathic Pulmonary Fibrosis. 2005.
警告：这些引文格式不一定是100％准确.