Cita APA (7th ed.)

Lens, P. N. L., Westermann, P., Haberbauer, M., & Moreno, A. (2005). Biofuels for fuel cells: Renewable energy from biomass fermentation (1a. ed.). IWA.

Cita Chicago (17th ed.)

Lens, Piet N. L., Pater Westermann, Marianne Haberbauer, i Angelo Moreno. Biofuels for Fuel Cells: Renewable Energy from Biomass Fermentation. 1a. ed. Londres: IWA, 2005.

Cita MLA (9th ed.)

Lens, Piet N. L., et al. Biofuels for Fuel Cells: Renewable Energy from Biomass Fermentation. 1a. ed. IWA, 2005.