TY  - BOOK
AU  - Conway Gordon R
AU  -  Barbier Edward B
TI  - After the green revolution :  Sustainable agricultu   
SN  - 1853830356
U1  - X9(J).1(X).N8, N0 
PY  - 1990///
CY  - London
PB  - Earthscan Publications U K       
KW  - Industry
ER  -