LANG, V. P. (1982). Air conditioning: Procedures and installation. Delmar.
Cita Chicago (17th ed.)LANG, V. Paul. Air Conditioning: Procedures and Installation. New York: Delmar, 1982.
Cita MLA (9th ed.)LANG, V. Paul. Air Conditioning: Procedures and Installation. Delmar, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.