Dyfyniad APA

HEILBRONER, R. L. (1978). Understanding macroeconomics (6th ed.). Printice Hall.

Dyfyniad Arddull Chicago

HEILBRONER, Robert L. Understanding Macroeconomics. 6th ed. Englewood Cliffs: Printice Hall, 1978.

Dyfyniad MLA

HEILBRONER, Robert L. Understanding Macroeconomics. 6th ed. Printice Hall, 1978.

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