(1996). A picture's worth a thousand words.
Dyfyniad Arddull ChicagoA Picture's Worth a Thousand Words. 1996.
Dyfyniad MLAA Picture's Worth a Thousand Words. 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
Dyfyniad APA