@article{186996, author = {Dixon, John A. and James, David E. and Sherman, Paul B.}, url = {http://digitallibrary.un.org/record/186996}, title = {Dryland management : economic case studies /}, publisher = {Earthscan,}, recid = {186996}, pages = {xxi, 364 p. :}, address = {London :. 1990}, year = {1990}, }