TY  - BOOK
ED  - Sri Lanka. Ministry of Local Government, Housing and Construction
TI  - Million houses programme: element no. 5 - excavation top soil, trenches
PY  - 1986///]
CY  - [Colombo]
PB  - Ministry of Local Government, Housing and Construction
KW  - TRENCHING
KW  - Houses-Construction
N1  - Basic house building skill training element system
ER  -