APA aipamena

(2004). Management of exacerbations of COPD. BMJ Group.

Chicago Style aipamena

Management of Exacerbations of COPD. BMJ Group, 2004.

MLA aipamena

Management of Exacerbations of COPD. BMJ Group, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.