Dyfyniad APA

(1975). Poetry. Typography by Greer Allen.

Dyfyniad Arddull Chicago

Poetry. Typography by Greer Allen, 1975.

Dyfyniad MLA

Poetry. Typography by Greer Allen, 1975.

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