Cita APA (7th ed.)
Arndt, R. Aramco World: March - April 1997, vol. 48, no. 2. Aramco Services.
Cita Chicago (17th ed.)
Arndt, Robert. Aramco World: March - April 1997, Vol. 48, No. 2. Houston, EUA: Aramco Services.
Cita MLA (9th ed.)
Arndt, Robert. Aramco World: March - April 1997, Vol. 48, No. 2. Aramco Services.
Atenció: Aquestes cites poden no estar 100% correctes.