Não informado. (1937). Air Conditioning and Refrigeration News. Business News Publishing.
Chicago-Zitierstil (17. Ausg.)Não informado. Air Conditioning and Refrigeration News. Troy, Mich: Business News Publishing, 1937.
MLA-Zitierstil (8. Ausg.)Não informado. Air Conditioning and Refrigeration News. Business News Publishing, 1937.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.