APA ציטוט

Mahmood, T., Singh, R. K., Kant, S., Shukla, A. D., Chandra, A., & Srivastava, R. K. (2017). Prevalence and etiological profile of chronic obstructive pulmonary disease in nonsmokers. Lung India.

Citação norma Chicago

Mahmood, Tariq, Ravindra Kumar Singh, Surya Kant, Amitabh Das Shukla, Alok Chandra, and Rajneesh Kumar Srivastava. "Prevalence and Etiological Profile of Chronic Obstructive Pulmonary Disease in Nonsmokers." Lung India 2017.

ציטוט MLA

Mahmood, Tariq, et al. "Prevalence and Etiological Profile of Chronic Obstructive Pulmonary Disease in Nonsmokers." Lung India 2017.