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.
Chicago-Zitierstil (17. Ausg.)Worldwatch Institute, Inc ebrary, und 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.
MLA-Zitierstil (9. Ausg.)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.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.