APA Alıntı

Stafyla, E., Kerenidi, T., & Gourgoulianis, K. I. (2013). Chronic obstructive pulmonary disease exacerbation frequency and severity. Dove Medical Press.

Chicago Stili Alıntı

Stafyla, Eirini, Theodora Kerenidi, ve Konstantinos I. Gourgoulianis. Chronic Obstructive Pulmonary Disease Exacerbation Frequency and Severity. Dove Medical Press, 2013.

MLA Alıntı

Stafyla, Eirini, Theodora Kerenidi, ve Konstantinos I. Gourgoulianis. Chronic Obstructive Pulmonary Disease Exacerbation Frequency and Severity. Dove Medical Press, 2013.