APA (7th ed.) Zitazioa
World Meteorological Organization, World Meteorological Organization, & Universal Postal Union. From weather gods to modern meteorology: A philatelic journey.
Chicago Style (17th ed.) Zitazioa
World Meteorological Organization, World Meteorological Organization, eta Universal Postal Union. From Weather Gods to Modern Meteorology: A Philatelic Journey.
MLA (9th ed.) Zitazioa
World Meteorological Organization, et al. From Weather Gods to Modern Meteorology: A Philatelic Journey.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.