Dyfyniad APA

O'Neill, R. (2008). As ovelhas fazem béé! as vacas fazem mú! Plátano.

Dyfyniad Arddull Chicago

O'Neill, Rikki. As Ovelhas Fazem Béé! as Vacas Fazem Mú! Plátano, 2008.

Dyfyniad MLA

O'Neill, Rikki. As Ovelhas Fazem Béé! as Vacas Fazem Mú! Plátano, 2008.

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