TY  - BOOK
AU  - Upton, Martin
TI  - The economics of tropical farming systems
SN  - 9780521635110
SN  - 96003040
U1  - 338.10913 UPT 
PY  - 1996///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Agriculture - Economic aspects - Africa
KW  - Agriculture - Economic aspects - Tropics
N1  - Includes bibliographical references and index
ER  -