TY  - BOOK
AU  - Rijtema,P.E.
AU  - Wassink,H.
ED  - Symposium on Water in the Unsaturated Zone 
ED  - UNESCO.
TI  - Water in the unsaturated zone = : eau dans la zone non saturee : 
U1  - 551.49 SYM 
PY  - 1969///
CY  - Brussels : 
PB  - International Association of Scientific Hydrology, 
KW  - Groundwater
KW  - Congresses
KW  - Soil moisture
N1  -  Includes bibliographies
ER  -