Cita APA

Birring, S., Parker, D., McKenna, S., Hargadon, B., Brightling, C., Pavord, I., & Bradding, P. (2005). Sputum eosinophilia in idiopathic pulmonary fibrosis.

Citación estilo Chicago

Birring, S., D. Parker, S. McKenna, B. Hargadon, C. Brightling, I. Pavord, and P. Bradding. Sputum Eosinophilia in Idiopathic Pulmonary Fibrosis. 2005.

Cita MLA

Birring, S., et al. Sputum Eosinophilia in Idiopathic Pulmonary Fibrosis. 2005.