Cita APA (7a ed.)
Arndt, R. Aramco World: January - February 1999, vol. 50, no. 1 : Saudi Arabia's Centennial. Aramco Services.
Cita estilo Chicago (17a ed.)
Arndt, Robert. Aramco World: January - February 1999, Vol. 50, No. 1 : Saudi Arabia's Centennial. Houston, EUA: Aramco Services.
Cita MLA (9a ed.)
Arndt, Robert. Aramco World: January - February 1999, Vol. 50, No. 1 : Saudi Arabia's Centennial. Aramco Services.
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