Dyfyniad APA

International Institute for Applied Systems Analysis & Lutz, W. (1994). The Future population of the world: What we can assume todayn. Earthscan Publications.

Dyfyniad Arddull Chicago

International Institute for Applied Systems Analysis and Wolfgang Lutz. The Future Population of the World: What We Can Assume Todayn. London: Earthscan Publications, 1994.

Dyfyniad MLA

International Institute for Applied Systems Analysis and Wolfgang Lutz. The Future Population of the World: What We Can Assume Todayn. Earthscan Publications, 1994.

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