Dyfyniad APA

Forster, G., & Leager, M. C. (1950). Elements of agricultural economics. Prentice -Hall Inc.

Dyfyniad Arddull Chicago

Forster, G.W, and Marc C. Leager. Elements of Agricultural Economics. New York: Prentice -Hall Inc, 1950.

Dyfyniad MLA

Forster, G.W, and Marc C. Leager. Elements of Agricultural Economics. Prentice -Hall Inc, 1950.

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