Dokumentuaren aipamena

APA (7th ed.) Zitazioa
(2004). Environmental factors linked to asthma prevalence disparity. BMJ.
Chicago Style (17th ed.) Zitazioa
"Environmental Factors Linked to Asthma Prevalence Disparity." BMJ 2004.
MLA (9th ed.) Zitazioa
"Environmental Factors Linked to Asthma Prevalence Disparity." BMJ, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.