APA aipamena

A Steinhouser & Dieter Deublein. (2011). Biogas from Waste and Renewable Resources. Weinheim.

Chicago Style aipamena

A Steinhouser and Dieter Deublein. Biogas from Waste and Renewable Resources. Weinheim, 2011.

MLA aipamena

A Steinhouser and Dieter Deublein. Biogas from Waste and Renewable Resources. Weinheim, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.