YPF. (2006). Argentina: Guía YPF (1a. ed.). YPF.
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Tohutoru Kātū Chicago (17th ed.)
YPF. Argentina: Guía YPF. 1a. ed. Buenos Aires: YPF, 2006.
I tāruatia paitia ki te papatopenga
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Tohutoro MLA (9th ed.)
YPF. Argentina: Guía YPF. 1a. ed. YPF, 2006.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
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