Dyfyniad APA

Whitman, W. (1959). Leaves of grass (First edition.). Penguin.

Dyfyniad Arddull Chicago

Whitman, Walt. Leaves of Grass. First edition. New York: Penguin, 1959.

Dyfyniad MLA

Whitman, Walt. Leaves of Grass. First edition. Penguin, 1959.

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