APA aipamena

World Health Organization. (1989). WORLD health organization: : publications catalogue 1948- 1989. World Health Organization.

Chicago Style aipamena

World Health Organization. WORLD Health Organization: : Publications Catalogue 1948- 1989. World Health Organization, 1989.

MLA aipamena

World Health Organization. WORLD Health Organization: : Publications Catalogue 1948- 1989. World Health Organization, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.