TY  - BOOK
AU  - Vos, J.,
TI  - Proceedings, Symposium 25th International Course on Land Drainage
SN  - 9070754118
U1  - 631 
PY  - 1987///
CY  - Wageningen
PB  - International Institute for Land Reclamation and Improvement
KW  - Land Drainage
KW  - Techniques, equipment & materials
ER  -