Dyfyniad APA

Cox,Brain, & Others. (2017). How to build a universe. William Collins.

Dyfyniad Arddull Chicago

Cox,Brain, and Others. How to Build a Universe. London: William Collins, 2017.

Dyfyniad MLA

Cox,Brain, and Others. How to Build a Universe. William Collins, 2017.

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