MLA

Deublein, Dieter, and Angelika Steinhauser. Biogas From Waste and Renewable Resources : an Introduction. Weinheim: Wiley, 2009.

APA

Deublein, D., & Steinhauser, A. (2009). Biogas from waste and renewable resources : an introduction. Weinheim: Wiley.

Chicago

Deublein, Dieter, and Angelika Steinhauser. Biogas From Waste and Renewable Resources: An Introduction. Weinheim: Wiley, 2009.