APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.