Cita APA (7th ed.)
Yimer, B. (2014). Alternative energy sources to combat climate change: Biogas production using cost effective material. Anchor Academic Publishing.
Cita Chicago (17th ed.)
Yimer, Bezabih. Alternative Energy Sources to Combat Climate Change: Biogas Production Using Cost Effective Material. Hamburg, Germany: Anchor Academic Publishing, 2014.
Cita MLA (9th ed.)
Yimer, Bezabih. Alternative Energy Sources to Combat Climate Change: Biogas Production Using Cost Effective Material. Anchor Academic Publishing, 2014.
Atenció: Aquestes cites poden no estar 100% correctes.