Dyfyniad APA

Weiner, J. (1990). The next one hundred years: Shaping the fate of our living earth. Rider.

Dyfyniad Arddull Chicago

Weiner, Jonathan. The Next One Hundred Years: Shaping the Fate of Our Living Earth. London: Rider, 1990.

Dyfyniad MLA

Weiner, Jonathan. The Next One Hundred Years: Shaping the Fate of Our Living Earth. Rider, 1990.

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