APA (7th ed.) Zitazioa

Air Conditioning, Heating & Refrigeration News. BNP Media.

Chicago Style (17th ed.) Zitazioa

Air Conditioning, Heating & Refrigeration News. BNP Media.

MLA (9th ed.) Zitazioa

Air Conditioning, Heating & Refrigeration News. BNP Media.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.