TY  - GEN
AU  - Ragland, Joh
AU  - Lal, Rattan
TI  - Technologies for sustainable agriculture in the tropics
T2  - ASA special publication, no. 56
SN  - 0891181180
U1  - 630 
PY  - 1993///
CY  - Wisconsin
PB  - ASA
KW  - AGRICULTURE
KW  - PROCEEDINGS
KW  - SUSTAINABLE AGRICULTURE
KW  - TROPICS
ER  -