Dyfyniad APA

(1990). Applied economics: Study guide. Colorado Springs, Colo.: Junior Achievement.

Dyfyniad Arddull Chicago

Applied Economics: Study Guide. Colorado Springs, Colo.: Junior Achievement, 1990.

Dyfyniad MLA

Applied Economics: Study Guide. Colorado Springs, Colo.: Junior Achievement, 1990.

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