Dyfyniad APA

Davies, P. (1995). About time: Einstein's unfinished revolution. Penguin Books.

Dyfyniad Arddull Chicago

Davies, Paul. About Time: Einstein's Unfinished Revolution. London: Penguin Books, 1995.

Dyfyniad MLA

Davies, Paul. About Time: Einstein's Unfinished Revolution. Penguin Books, 1995.

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