Inderwildi, O., & King, D. (2009). Quo vadis biofuels?
Cita Chicago (17th ed.)Inderwildi, O., i D. King. Quo Vadis Biofuels? 2009.
Cita MLA (9th ed.)Inderwildi, O., i D. King. Quo Vadis Biofuels? 2009.
Atenció: Aquestes cites poden no estar 100% correctes.