Hungate, L. . S., & Sherman, R. W. (1979). Food and economics. AVI publishing.
Dyfyniad Arddull ChicagoHungate, Lois Simonds, and Ralph W. Sherman. Food and Economics. Connecticut: AVI publishing, 1979.
Dyfyniad MLAHungate, Lois Simonds, and Ralph W. Sherman. Food and Economics. AVI publishing, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.