E.R.Ambrose. (1966). Heat pumps and electric heating. New York: John Wiley & Son.
Dyfyniad Arddull ChicagoE.R.Ambrose. Heat Pumps and Electric Heating. New York: John Wiley & Son, 1966.
Dyfyniad MLAE.R.Ambrose. Heat Pumps and Electric Heating. New York: John Wiley & Son, 1966.
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