TY  - BOOK
AU  - Coche,a g
TI  - Simple methods for aquaculture : TOPOGRAPHY for freshwater fish culture topographical tools
T2  - FAO Training 
SN  - 9251025908
U1  - 639.31 
PY  - 1988///
CY  - Rome
PB  - Food and agriculture organization of the united nations
ER  -