APA aipamena

(1980). Sixth Report On he World Health Situation. Jeneva: WHO.

Chicago Style aipamena

Sixth Report On He World Health Situation. Jeneva: WHO, 1980.

MLA aipamena

Sixth Report On He World Health Situation. Jeneva: WHO, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.