Dyfyniad APA

(2013). Nature Vol. 504, December No. 7478 s/d No. 7480 th. 2013. Macmillan Publishers.

Dyfyniad Arddull Chicago

Nature Vol. 504, December No. 7478 S/d No. 7480 Th. 2013. Macmillan Publishers, 2013.

Dyfyniad MLA

Nature Vol. 504, December No. 7478 S/d No. 7480 Th. 2013. Macmillan Publishers, 2013.

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