TY  - BOOK
AU  - ASWATHANARAYANA U
TI  - Natural resources:  Technology, economics and policy   
SN  - 9780415897914
U1  - U671, Q2 
PY  - 2012///
CY  - New York
PB  - CRC Press        
KW  - Geography
N1  - Bibliography: 239-253p
ER  -