TY  - BOOK
AU  - Boonstra,J.
AU  - Ridder,Nicholaas Arie de
TI  - Numerical modelling of groundwater basins: a user-oriented manual 
T2  - International Institute for Land Reclamation and Improvement. Publication
SN  - 9070260697
PY  - 1981///
CY  - Wageningen
PB  - International Institute for Land Reclamation and Improvement
KW  - Groundwater flow
N1  - Includes indexes; Includes bibliographical references :  p. 217-219
ER  -