APA-viite (7. p.)

(2017). IE Business Cases. The Oil Sector: The Importance of Inventory Ratios. Version A. Instituto de Empresa SL.

Chicago-viite (17. p.)

IE Business Cases. The Oil Sector: The Importance of Inventory Ratios. Version A. [S.l.]: Instituto de Empresa SL, 2017.

MLA-viite (9. p.)

IE Business Cases. The Oil Sector: The Importance of Inventory Ratios. Version A. Instituto de Empresa SL, 2017.