Dyfyniad APA

Smith, K. (2011). This is not a book. London: Penguin Books.

Dyfyniad Arddull Chicago

Smith, Keri. This Is Not a Book. London: Penguin Books, 2011.

Dyfyniad MLA

Smith, Keri. This Is Not a Book. London: Penguin Books, 2011.

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