Soremekun, O., & Onwuka, R. I. (2014). Nigerian Petroleum Policy and External Relations. Obafemi Awolowo University.
Cita Chicago (17th ed.)Soremekun, Olukayode, i R. I. Onwuka. Nigerian Petroleum Policy and External Relations. Obafemi Awolowo University, 2014.
Cita MLA (9th ed.)Soremekun, Olukayode, i R. I. Onwuka. Nigerian Petroleum Policy and External Relations. Obafemi Awolowo University, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.