APA (7e ed.) Bronvermelding

Não informado. (1922). American highways. American Association of Highway Officials.

Chicago (17e ed.) Bronvermelding

Não informado. American Highways. Washington: American Association of Highway Officials, 1922.

MLA (8e ed.) Bronvermelding

Não informado. American Highways. American Association of Highway Officials, 1922.

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