TY  - BOOK
AU  - Duffie,John A.
AU  - Beckman,William A.
TI  - Solar engineering of thermal processes
SN  - 0471510564
U1  - TJ/810 
PY  - 1991///
CY  - New York
PB  - John Wiley & Sons
KW  - Solar energy.
ER  -