APA (7th ed.) Zitazioa

Wellinger, A., Murphy, J., & Baxter, D. (2013). The biogas handbook: Science, production and applications. Woodhead Publishing.

Chicago Style (17th ed.) Zitazioa

Wellinger, A., Jerry Murphy, eta David Baxter. The Biogas Handbook: Science, Production and Applications. Oxford: Woodhead Publishing, 2013.

MLA (9th ed.) Zitazioa

Wellinger, A., et al. The Biogas Handbook: Science, Production and Applications. Woodhead Publishing, 2013.