TY  - RPRT
TI  - A practical solar energy heating and cooling system
AU  - Oneill, M. J.
AU  - Mcdanal, A. J.
AU  - Sims, W. H.
PY  - 1973
UR  - https://ntrs.nasa.gov/citations/19730000156
ID  - 19730000156
ER  -