Dyfyniad APA

(1991). Review of agricultural economics. Dept. of Agricultural Economics, Michigan State University.

Dyfyniad Arddull Chicago

Review of Agricultural Economics. East Lansing, MI: Dept. of Agricultural Economics, Michigan State University, 1991.

Dyfyniad MLA

Review of Agricultural Economics. Dept. of Agricultural Economics, Michigan State University, 1991.

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