APA

Díaz Fernández J. L., Fundación Repsol, World Petroleum Congress (15th. : 1997 : Beijing) & Fundación Repsol.Demonopolization, de-regulation and restructuring of the spanish petroleum sector. : .

Chicago

Díaz Fernández José Luis, Fundación Repsol, World Petroleum Congress (15th. : 1997 : Beijing) and Fundación Repsol.Demonopolization, de-regulation and restructuring of the spanish petroleum sector. : .

Harvard

Díaz Fernández J. L., Fundación Repsol, World Petroleum Congress (15th. : 1997 : Beijing) and Fundación Repsol.Demonopolization, de-regulation and restructuring of the spanish petroleum sector. : .

MLA

Díaz Fernández José Luis, Fundación Repsol, World Petroleum Congress (15th. : 1997 : Beijing) and Fundación Repsol.: . .