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