Citação norma APA

Rutgers, S., van der Mark, T. W., Coers, W., Moshage, H., Timens, W., Kauffman, H., . . . Postma, D. (1999). Markers of nitric oxide metabolism in sputum and exhaled air are not increased in chronic obstructive pulmonary disease. BMJ Group.

Citação norma Chicago

Rutgers, S., T. W. van der Mark, W. Coers, H. Moshage, W. Timens, H. Kauffman, G. Koeter, and D. Postma. Markers of Nitric Oxide Metabolism in Sputum and Exhaled Air Are not Increased in Chronic Obstructive Pulmonary Disease. BMJ Group, 1999.

Citação norma MLA

Rutgers, S., et al. Markers of Nitric Oxide Metabolism in Sputum and Exhaled Air Are not Increased in Chronic Obstructive Pulmonary Disease. BMJ Group, 1999.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.