TY  - BOOK
AU  - Ruthenberg, Hans
TI  - Farming systems in the tropics
SN  - 0-19859461-5
AV  - SB111.R87	 
PY  - 1976///
CY  - Oxford
PB  -  Clarendon Press
KW  - Agricultural systems
KW  - Tropics
KW  - Farm management
N1  - Includes bibliographical references and index

ER  -