TY  - BOOK
AU  - Upton, Martin
AU  - 
TI  - Economic of Tropical Farming systems
SN  - 0-521-483409
U1  - 631.11:330 
PY  - 1996///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Agriculture- economic Aspects Tropics
N1  -  illu (WYE studies in agricultural and rural development)
ER  -