Pavord, I. (2004). Cough and asthma.
Chicago Style aipamenaPavord, I. Cough and Asthma. 2004.
MLA aipamenaPavord, I. Cough and Asthma. 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
Pavord, I. (2004). Cough and asthma.
Chicago Style aipamenaPavord, I. Cough and Asthma. 2004.
MLA aipamenaPavord, I. Cough and Asthma. 2004.