Claessens, S., & Duncan, R. C. (1993). Managing commodity price risk in developing countries. The Johns Hopkins University Press.
Dyfyniad Arddull ChicagoClaessens, Stijn, and Ronald C. Duncan. Managing Commodity Price Risk in Developing Countries. Baltimore: The Johns Hopkins University Press, 1993.
Dyfyniad MLAClaessens, Stijn, and Ronald C. Duncan. Managing Commodity Price Risk in Developing Countries. The Johns Hopkins University Press, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.