Dyfyniad APA

Heilbroner, R. L., & Ford, A. M. (1976). Economic relevance: A second look. Goodyear Pub. Co..

Dyfyniad Arddull Chicago

Heilbroner, Robert L., and Arthur M. Ford. Economic Relevance: A Second Look. Pacific Palisades, Calif.: Goodyear Pub. Co., 1976.

Dyfyniad MLA

Heilbroner, Robert L., and Arthur M. Ford. Economic Relevance: A Second Look. Goodyear Pub. Co., 1976.

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