5199
9634
Ritchie, James D.
Sourcebook for farm energy alternatives
New York
McGraw-Hill
1983
]various pagination[:ill
Includes bibliographies and index
]by[ James D. Ritchie
، Renewable energy sources
، Energy conservation
، Agriculture and energy
TJ
163
.
3
.
R57
AU
TI
CL
CL.نوجی
