TY  - BOOK
ED  - National Drainage Symposium 
ED  - American Society of Agricultural Engineers.
TI  - Drainage desing and management: proceedings of the fifth National Drainage Symposium
SN  - 0-916150-88-7
AV  - TC970 N38 1987
PY  - 1987///
CY  - Michigan
PB  - American Society of Agricultural Engineers
N1  - Incluye bibliografia
ER  -