United States. Fuel Administration. (1994). Boiler water treatment. Govt. print. off..
Cita Chicago Style (17a ed.)United States. Fuel Administration. Boiler Water Treatment. Washington: Govt. print. off., 1994.
Cita MLA (9a ed.)United States. Fuel Administration. Boiler Water Treatment. Govt. print. off., 1994.
Precaución: Estas citas no son 100% exactas.