Dyfyniad APA

Barrera-Rey, F. (1995). The effects of vertical integration on oil company performance. Oxford Institute for Energy Studies.

Dyfyniad Arddull Chicago

Barrera-Rey, F. The Effects of Vertical Integration on Oil Company Performance. Oxford Institute for Energy Studies, 1995.

Dyfyniad MLA

Barrera-Rey, F. The Effects of Vertical Integration on Oil Company Performance. Oxford Institute for Energy Studies, 1995.

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