Dyfyniad APA

Lockwood, M. (2007). labyrinth of time: Introducing the universe. Oxford University Press.

Dyfyniad Arddull Chicago

Lockwood, Michael. Labyrinth of Time: Introducing the Universe. Oxford: Oxford University Press, 2007.

Dyfyniad MLA

Lockwood, Michael. Labyrinth of Time: Introducing the Universe. Oxford University Press, 2007.

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