Ritson, C., & Harvey, D. (1997). The common agricultural policy (2nd ed.). CAB International.
芝加哥风格引文Ritson, Christopher, 与 David Harvey. The Common Agricultural Policy. 2nd ed. New York, NY: CAB International, 1997.
MLA引文Ritson, Christopher, 与 David Harvey. The Common Agricultural Policy. 2nd ed. CAB International, 1997.