Sachs Jeffrey D. author Columbia University. Earth Institute Columbia University. Economics Columbia University. International and Public Affairs Columbia University. Health Policy and Management Columbia University. Earth Institute originator text Presentations 2006 English Presented at the Clinton School of Public Service, University of Arkansas, March 15, 2006. Area planning and development http://hdl.handle.net/10022/AC:P:8256 NNC NNC 2009-09-30 15:39:40 -0400 2011-09-16 15:25:57 -0400 460 eng