Peter Burgess
United States. Bonneville Power Administration
Marcel Soulas
Hans-Joachim Ziesing
M. Chandrashekar
Unknown Author
Estel B. Penrod
Alfred L Johnson
Douglas M Jardine
N. M. White
Montana. Conservation Districts Bureau
Frederick O. Smetana
Michael Howes
Ronald E. Holmes
Österreichisches Kuratorium für Landtechnik.
L. E. Zapata
Workshop on Solar Energy Heat Pump Systems for Heating and Cooling Buildings (1975 Pennsylvania State University)
Argonne National Laboratory. Energy and Environmental Systems Division. Special Projects Group.
Workshop on Solar Energy Heat Pump Systems for Heating and Cooling Buildings, Pennsylvania State University, 1975.