TY  - GEN
AU  - Tharumaratnam, Vythilingam
TI  - An introduction to a 21st century energy source for Sri Lanka: ground source energy systems (GS-systems)
SN  - 0952551713
U1  - 333.79055 
PY  - 1995///
CY  - London
PB  - Business Marketing International
KW  - ECONOMICS
ER  -