Ritson, C., & Harvey, D. (1997). The common agricultural policy (2nd ed.). CAB International.
Citação do estilo Chicago (17ª ed.)Ritson, Christopher, e David Harvey. The Common Agricultural Policy. 2nd ed. New York, NY: CAB International, 1997.
Citação MLA (9ª ed.)Ritson, Christopher, e David Harvey. The Common Agricultural Policy. 2nd ed. CAB International, 1997.