APA(7版)引用形式

IE Business Cases. XP Oil Corporation in the Orinoquia Region. [s.n.].

Chicagoスタイル(17版)引用形式

IE Business Cases. XP Oil Corporation in the Orinoquia Region. [S.l.]: [s.n.].

MLA(9版)引用形式

IE Business Cases. XP Oil Corporation in the Orinoquia Region. [s.n.].

警告: この引用は必ずしも正確ではありません.