TY  - BOOK
AU  - UKAGA Okechukwu
TI  - Sustainable development:  Principles, frameworks, and case studies.   
SN  - 9781439820629
U1  - X:77:(G:55), Q0 
PY  - 2010///
CY  - New York
PB  - CRC Press        
KW  - Geography
ER  -