Cita APA

Spence, D. P., Hay, J. G., Carter, J., Pearson, M. G., & Calverley, P. M. (1993). Oxygen desaturation and breathlessness during corridor walking in chronic obstructive pulmonary disease: Effect of oxitropium bromide.

Citación estilo Chicago

Spence, D. P., J. G. Hay, J. Carter, M. G. Pearson, y P. M. Calverley. Oxygen Desaturation and Breathlessness During Corridor Walking in Chronic Obstructive Pulmonary Disease: Effect of Oxitropium Bromide. 1993.

Cita MLA

Spence, D. P., et al. Oxygen Desaturation and Breathlessness During Corridor Walking in Chronic Obstructive Pulmonary Disease: Effect of Oxitropium Bromide. 1993.