TY  - BOOK
AU  - Wrigley,Gordon
TI  - Tropical agriculture: the development of production
U1  - 630 
PY  - 1961///
CY  - London
PB  - B.T. Batsford
KW  - Agricultural systems
KW  - Tropical crops
KW  - Agriculture
KW  - Tropics
KW  - Soil science
N1  - Includes index; Bibliography: p. 270-284
ER  -