TY  - BOOK
AU  - Bear,Jacob
AU  - Zaslavsky,David Isoifovich
AU  - Irmay,S.
TI  - Physical principles of water percolation and seepage / 
PY  - 1968///
CY  - Paris : 
PB  - UNESCO , 
KW  - Soil percolation
KW  - Seepage
N1  -  Includes bibliographical references
ER  -