American National Standards Institute. (2002). An American National Standard: Process Piping. American: American Society of Mechanical Engineers.
Dyfyniad Arddull ChicagoAmerican National Standards Institute. An American National Standard: Process Piping. American: American Society of Mechanical Engineers, 2002.
Dyfyniad MLAAmerican National Standards Institute. An American National Standard: Process Piping. American: American Society of Mechanical Engineers, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.