Citazione Stile APA (7a Edizione)

Barbier, E. B., & Burgess, J. (1992). Agricultural pricing and environmental degradation. Office of the Vice President Development Economics.

Citazione stile Chigago Style (17a edizione)

Barbier, Edward B., e Joanne Burgess. Agricultural Pricing and Environmental Degradation. Washington, D.C: Office of the Vice President Development Economics, 1992.

Citatione MLA (9a ed.)

Barbier, Edward B., e Joanne Burgess. Agricultural Pricing and Environmental Degradation. Office of the Vice President Development Economics, 1992.