Dyfyniad APA

Clayton. Many Seconds into the Future. Texas Tech University Press.

Dyfyniad Arddull Chicago

Clayton. Many Seconds into the Future. Texas Tech University Press.

Dyfyniad MLA

Clayton. Many Seconds into the Future. Texas Tech University Press.

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