Dyfyniad APA

HENDERSON, J. V., & POOLE, W. (1991). Principles of macroeconomics. D.C. Heath and Co.

Dyfyniad Arddull Chicago

HENDERSON, J. Vernon, and William POOLE. Principles of Macroeconomics. Lexington: D.C. Heath and Co, 1991.

Dyfyniad MLA

HENDERSON, J. Vernon, and William POOLE. Principles of Macroeconomics. D.C. Heath and Co, 1991.

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