Dyfyniad APA

(2001). The papers of Wilbur and Orville Wright volume 1 1899-1905. McGraw-Hill.

Dyfyniad Arddull Chicago

The Papers of Wilbur and Orville Wright Volume 1 1899-1905. McGraw-Hill, 2001.

Dyfyniad MLA

The Papers of Wilbur and Orville Wright Volume 1 1899-1905. McGraw-Hill, 2001.

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