Dyfyniad APA

Freedgood. Worlds Enough. Princeton University Press.

Dyfyniad Arddull Chicago

Freedgood. Worlds Enough. Princeton University Press.

Dyfyniad MLA

Freedgood. Worlds Enough. Princeton University Press.

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