Dyfyniad APA

Gregory, P. R., & Stuart, R. C. (1980). Comparative economic systems. Houghton Mifflin.

Dyfyniad Arddull Chicago

Gregory, Paul R., and Robert C. Stuart. Comparative Economic Systems. Boston: Houghton Mifflin, 1980.

Dyfyniad MLA

Gregory, Paul R., and Robert C. Stuart. Comparative Economic Systems. Houghton Mifflin, 1980.

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