Davis, W. T. (2000). Air pollution engineering manual (2nd ed.). John Wiley & Sons.
Dyfyniad Arddull ChicagoDavis, Wayne T. Air Pollution Engineering Manual. 2nd ed. New York: John Wiley & Sons, 2000.
Dyfyniad MLADavis, Wayne T. Air Pollution Engineering Manual. 2nd ed. John Wiley & Sons, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.