APA (7th ed.) Citation

Southgate, D. D., Graham, D. H., & Tweeten, L. G. (2006). The world food economy. Blackwell.

Chicago Style (17th ed.) Citation

Southgate, Douglas Dewitt, Douglas H. Graham, and Luther G. Tweeten. The World Food Economy. Malden, MA: Blackwell, 2006.

MLA (9th ed.) Citation

Southgate, Douglas Dewitt, et al. The World Food Economy. Blackwell, 2006.