00481nam a22001577a 4500 LDD 20260318062545.0 260318b |||||||| |||| 00| 0 eng d 9780521733144 IGNOU Library Solutions for the World's biggest problems: costs and benefits/ Edited by Bjorn Lomborg New Delhi; Cambridge University Press, 2008. xvii, 442p. Lomborg, Bjorn editor 21417 ddc G 200563 200563