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