Cita APA (7th ed.)

Smil, V. (2001). Enriching the earth: Fritz Haber, Carl Bosch, and the transformation of world food production. MIT Press.

Cita Chicago (17th ed.)

Smil, Vaclav. Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food Production. Cambridge, Mass: MIT Press, 2001.

Cita MLA (9th ed.)

Smil, Vaclav. Enriching the Earth: Fritz Haber, Carl Bosch, and the Transformation of World Food Production. MIT Press, 2001.