Dokumentuaren aipamena

APA (7th ed.) Zitazioa
(1991). Forced expiratory indices in normal black Southern African children aged 6-19 years. Thorax.
Chicago Style (17th ed.) Zitazioa
"Forced Expiratory Indices in Normal Black Southern African Children Aged 6-19 Years." Thorax 1991.
MLA (9th ed.) Zitazioa
"Forced Expiratory Indices in Normal Black Southern African Children Aged 6-19 Years." Thorax, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.