APA (7th ed.) Zitazioa
Air Treatment Products in Hong Kong, China. Euromonitor International Ltd.
Chicago Style (17th ed.) Zitazioa
Air Treatment Products in Hong Kong, China. Euromonitor International Ltd.
MLA (9th ed.) Zitazioa
Air Treatment Products in Hong Kong, China. Euromonitor International Ltd.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.