APA (7e ed.) Bronvermelding

Não informado. (1939). Consulting engineer. Northwood Publications.

Chicago (17e ed.) Bronvermelding

Não informado. Consulting Engineer. London: Northwood Publications, 1939.

MLA (8e ed.) Bronvermelding

Não informado. Consulting Engineer. Northwood Publications, 1939.

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