Dyfyniad APA

United States. Fuel Administration. (1994). Boiler water treatment. Govt. print. off..

Dyfyniad Arddull Chicago

United States. Fuel Administration. Boiler Water Treatment. Washington: Govt. print. off., 1994.

Dyfyniad MLA

United States. Fuel Administration. Boiler Water Treatment. Govt. print. off., 1994.

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