Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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