APA (7th ed.) Zitazioa

International Journal on Grey Literature. Emerald Publishing Limited.

Chicago Style (17th ed.) Zitazioa

International Journal on Grey Literature. Emerald Publishing Limited.

MLA (9th ed.) Zitazioa

International Journal on Grey Literature. Emerald Publishing Limited.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.