Cita APA (7th ed.)

Lehmann, J., & Joseph, S. (2009). Biochar for environmental management: Science and technology. Earthscan.

Cita Chicago (17th ed.)

Lehmann, Johannes, i Stephen Joseph. Biochar for Environmental Management: Science and Technology. London: Earthscan, 2009.

Cita MLA (8th ed.)

Lehmann, Johannes, i Stephen Joseph. Biochar for Environmental Management: Science and Technology. Earthscan, 2009.