TY  - BOOK
AU  - Roelfzema, A., coaut.
ED  - Delft Hydraulics Laboratory (Holanda).
TI  - Waterquantity and -quality research for the rhine- meuse es-tuary / A. Roelzema ... [et al.]
CY  - Delft, [Holanda] : Delft Hydraulics Laboratory
ER  -