TY  - BOOK
AU  - Trotter, W. K.
AU  - Heid, W. G., Jr.
AU  - McElroy, R. G.
TI  - Solar energy for agriculture; review of research
T2  - ESCS-6/7
PY  - 1979///
CY  - Washington, USDA.
PB  - Economic, Statistics and Cooperative Service
KW  - Agricultura
KW  - Energía solar
ER  -