@article{911908, recid = {911908}, author = {Aswathanarayana, U.}, title = {Natural resources: technology, economics and policy /}, publisher = {CRC Press, Taylor & Francis Group,}, address = {Boca Raton :}, pages = {xxxv, 463 p. :}, year = {2012}, url = {http://library.usi.edu/record/911908}, }