APA (7e ed.) Bronvermelding

Não informado. (1949). Engineering report. Iowa Engineering Experiment Station.

Chicago (17e ed.) Bronvermelding

Não informado. Engineering Report. Ames, Iowa: Iowa Engineering Experiment Station, 1949.

MLA (8e ed.) Bronvermelding

Não informado. Engineering Report. Iowa Engineering Experiment Station, 1949.

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