Dyfyniad APA

LANG, V. P. (1982). Air conditioning: Procedures and installation. Delmar.

Dyfyniad Arddull Chicago

LANG, V. Paul. Air Conditioning: Procedures and Installation. New York: Delmar, 1982.

Dyfyniad MLA

LANG, V. Paul. Air Conditioning: Procedures and Installation. Delmar, 1982.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.