00498cam a22001337a 4500 180718b2004 xxu||||| |||| 00| 0 eng d Wang, Hua Estimating willingness to pay with random valuation models: an application to lake sevan, Armenia by Hua Wang, et.al. Washington, D.C. World Bank 2004 41p. Policy research working paper; no. 3367 Sevan Lake (Armenia Environmental protection --Armenia --Sevan Lake 291682 291682 0 0 0 0 IIPA IIPA 2005-04-21 WB10319 2018-07-20 2018-07-20 WB