TY  - BOOK
ED  - Water and power development authority.
TI  - Drain envelope laboratory testing and analysis procedures.
T2  - Publication no. 109
U1  - R 379.2 DRA 1995 
PY  - 1995///
CY  - Lahore
PB  - Water and power development authority.
KW  - Laboratory testing
KW  - Drainage system
ER  -