TY  - BOOK
AU  - Hupping,Carol
TI  - Producing your own power: how to make nature's energy sources work for you 
SN  - 0394714407
AV  - TJ 153 P964 1975
U1  - 621.4 
PY  - 1975///, c1974
CY  - New York
PB  - Vintage Books
KW  - Power resources
KW  - Power (Mechanics)
ER  -