Smil, V. (2000). Feeding the world: A challenge for the twenty-first century. MIT Press.
Citazione stile Chigago Style (17a edizione)Smil, Vaclav. Feeding the World: A Challenge for the Twenty-first Century. Cambridge, Mass: MIT Press, 2000.
Citatione MLA (9a ed.)Smil, Vaclav. Feeding the World: A Challenge for the Twenty-first Century. MIT Press, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.