TY  - BOOK
AU  - Cedergren, Harry R.
AU  - Harry R. Cedergren
TI  - Seepage, drainage, and flow nets
U1  - 627.54 SEE 1967 
PY  - 1967///
CY  - London
PB  - John wiley & sons
KW  - Drainage
N1  - includes index
ER  -