TY  - BOOK
AU  - Farr, E.
AU  - Henderson, W. C.
TI  - Land drainage
T2  - Longman handbooks in agriculture
U1  - 631.6 
PY  - 1986///
CY  - London
PB  - Longman
KW  - Drenaje
N1  - 31-80
ER  -