TY  - BOOK
AU  - Wahl, Edward F.
TI  - Geothermal energy utilization
SN  - 0-471-02304-3
U1  - 621.44 
PY  - 1977///
CY  - New York
PB  - John Wiley
KW  - Expension machines
KW  - Geothermal engineering
KW  - Thermal utilization
N1  - Includes bibliographical references and index
ER  -