TY  - BOOK
AU  - Twidell, John and Weir, Tony 
TI  - Renewable energy resources 
SN  - 9780419253303
U1  - 621.042 TWI  
PY  - 2013///
CY  - Toylor and Franc 
PB  - London 
KW  - ENERGY CONVERSION
ER  -