Dyfyniad APA

O'Neill, E. (1988). Eugene O'Neill Complete Plays 1920-1931. Library of America.

Dyfyniad Arddull Chicago

O'Neill, Eugene. Eugene O'Neill Complete Plays 1920-1931. New York, N.Y.: Library of America, 1988.

Dyfyniad MLA

O'Neill, Eugene. Eugene O'Neill Complete Plays 1920-1931. Library of America, 1988.

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