Dyfyniad APA

Worldwatch Institute, ebrary, Inc, & Starke, L. (2012). State of the world 2012: Moving toward sustainable prosperity : a Worldwatch Institute report on progress toward a sustainable society. Island Press.

Dyfyniad Arddull Chicago

Worldwatch Institute, Inc ebrary, and Linda Starke. State of the World 2012: Moving Toward Sustainable Prosperity : A Worldwatch Institute Report on Progress Toward a Sustainable Society. Washington, D.C.: Island Press, 2012.

Dyfyniad MLA

Worldwatch Institute, et al. State of the World 2012: Moving Toward Sustainable Prosperity : A Worldwatch Institute Report on Progress Toward a Sustainable Society. Island Press, 2012.

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