APA (7th ed.) Zitazioa
Arndt, R. Saudi Aramco World: January - February 2008, vol. 59, no. 1 : Hearts of the New Silk Roads. Aramco Services.
Chicago Style (17th ed.) Zitazioa
Arndt, Robert. Saudi Aramco World: January - February 2008, Vol. 59, No. 1 : Hearts of the New Silk Roads. Houston, EUA: Aramco Services.
MLA (9th ed.) Zitazioa
Arndt, Robert. Saudi Aramco World: January - February 2008, Vol. 59, No. 1 : Hearts of the New Silk Roads. Aramco Services.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.