Dyfyniad APA

Hawking Stephen. (1988). A brief history of time: From the big bang to black holes (357.). Space Time Publication.

Dyfyniad Arddull Chicago

Hawking Stephen. A Brief History of Time: From the Big Bang to Black Holes. 357. Great Britain: Space Time Publication, 1988.

Dyfyniad MLA

Hawking Stephen. A Brief History of Time: From the Big Bang to Black Holes. 357. Space Time Publication, 1988.

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