Wellinger, A., Murphy, J., & Baxter, D. (2013). The biogas handbook: Science, production and applications. Woodhead Publishing.
Cita Chicago (17th ed.)Wellinger, A., Jerry Murphy, i David Baxter. The Biogas Handbook: Science, Production and Applications. Oxford: Woodhead Publishing, 2013.
Cita MLA (9th ed.)Wellinger, A., et al. The Biogas Handbook: Science, Production and Applications. Woodhead Publishing, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.