TY  - GEN
AU  - Perera, H. D. B. S
TI  - Trend analysis of the use of natural resources in the construction industry
SN  - 9559017098
U1  - 333.7 
PY  - 2002///
CY  - Colombo
PB  - The Dept. of National Planning
KW  - CONSTRUCTION INDUSTRY
KW  - NATURAL RESOURCES
KW  - SLC
ER  -