TY  - BOOK
AU  - 
TI  - Farming for the future: : an introduction to low-external-input and sustainable agriculture
SN  - 0333570111 
AV  - S494.5.S86. R21
PY  - 1992///
CY  -  London
PB  -  MacMillan, 
KW  -  
KW  - Agroecology
ER  -