United States. Fuel Administration. (1994). Boiler water treatment. Govt. print. off..
Chicago Style (17. basım) AtıfUnited States. Fuel Administration. Boiler Water Treatment. Washington: Govt. print. off., 1994.
MLA (9th ed.) AtıfUnited States. Fuel Administration. Boiler Water Treatment. Govt. print. off., 1994.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..