(2014). IE Business Cases. Chevron Cracks a New Market: Hydraulic Fracturing in Europe. Instituto de Empresa SL.
Chicago Style aipamenaIE Business Cases. Chevron Cracks a New Market: Hydraulic Fracturing in Europe. [S.l.]: Instituto de Empresa SL, 2014.
MLA aipamenaIE Business Cases. Chevron Cracks a New Market: Hydraulic Fracturing in Europe. Instituto de Empresa SL, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.