TY  - BOOK
AU  - RUTHENBERG, Hans
TI  - Farming systems in the tropics
SN  - 019859481
PY  - 1980///
CY  - Oxford
PB  - Clarendon Press
KW  - Agriculture
KW  - Tropics
KW  - Farm management
N1  - Includes bibliographical references and index
ER  -