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Prism Press
> John A. Sumner
John A. Sumner
title
ISBN-13
(ISBN-10)
year of publication
Introduction to Heat Pumps
978-O-9O7O61-OO-7
(O-9O7O61-OO-1)
1980
A.S.
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J. A.
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J. S.
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John A.
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John S.
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John Sumner
John A. Sutherland