TY  - BOOK
AU  - Vanloon Gary W
TI  - Agricultural sustainability :  Strategies for asses   
SN  - 0761933409
U1  - U672(J):(G:55), P5 
PY  - 2005///
CY  -  New Delhi 
PB  - Sage Publications India       
KW  - Agricultural Geography
ER  -