Citazione APA

Southgate, D. . .., Graham, D. H., & Tween, L. (2007). World food economy. Blackwell.

Stile di citazione Chicago

Southgate, Douglas ., Douglas. H. Graham, e Luther Tween. World Food Economy. Carlton: Blackwell, 2007.

Citazione MLA

Southgate, Douglas ., et al. World Food Economy. Blackwell, 2007.