Dyfyniad APA

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.

Dyfyniad Arddull Chicago

Ashton, J., Christopher Ritson, and 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.

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.