State of the world : : the challenge of global sustainability 2006 / / Danielle Nierenberg; Linda Starke... [et al.].

MLA

Nierenberg, Danielle, and Linda Starke. State of the World : the Challenge of Global Sustainability 2006. 23rd editiion London: Earthscan, 2006.

APA

Nierenberg, D., & Starke, L. (2006). State of the world : the challenge of global sustainability 2006. 23rd editiion London: Earthscan.

Chicago

Nierenberg, Danielle, and Linda Starke. State of the World: The Challenge of Global Sustainability 2006. 23rd editiion London: Earthscan, 2006.