Cita APA (7th ed.)

Ashton, J., Ritson, C., & Harvey, D. R. (1991). The Common agricultural policy and the world economy: Essays in honour of John Ashton. C·A·B International.

Cita Chicago (17th ed.)

Ashton, J., Christopher Ritson, i David R. Harvey. The Common Agricultural Policy and the World Economy: Essays in Honour of John Ashton. Wallingford, Oxon, UK: C·A·B International, 1991.

Cita MLA (8th ed.)

Ashton, J., et al. The Common Agricultural Policy and the World Economy: Essays in Honour of John Ashton. C·A·B International, 1991.