Dyfyniad APA

(1933). The causes of the present depression and possible remedies / Winthrop W. Aldrich.

Dyfyniad Arddull Chicago

The Causes of the Present Depression and Possible Remedies / Winthrop W. Aldrich. 1933.

Dyfyniad MLA

The Causes of the Present Depression and Possible Remedies / Winthrop W. Aldrich. 1933.

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