Dyfyniad APA

Howe, L., & Wain, A. (1993). Predicting The Future. Cambridge University Press.

Dyfyniad Arddull Chicago

Howe, Leo, and Alan Wain. Predicting The Future. Cambridge: Cambridge University Press, 1993.

Dyfyniad MLA

Howe, Leo, and Alan Wain. Predicting The Future. Cambridge University Press, 1993.

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